集成电路

子分类

📁 ADC/DAC 3,100+ 产品 📁 放大器IC 1,700+ 产品 📁 音频编解码器 18 产品 📁 音频IC 2 产品 📁 时钟与计时 640+ 产品 📁 Comparator ICs 1 产品 📁 DSP 1,100+ 产品 📁 数据采集IC 2 产品 📁 数字电位器 4 产品 📁 显示驱动与控制器 1 产品 📁 FPGA与CPLD 7,100+ 产品 📁 接口IC 3,100+ 产品 📁 LED驱动器 1 产品 📁 逻辑IC 450+ 产品 📁 存储IC 870+ 产品 📁 微控制器 20,000+ 产品 📁 微处理器 4 产品 📁 电机驱动器 1 产品 📁 其他 1 产品 📁 Sensor and Detector Interfaces 1 产品 📁 专用IC 15 产品 📁 视频IC 13 产品

产品（38,000+)

W78E054DDG - 8-Bit 40MHz 16KB Flash MCU | Nuvoton
W78E054DDG

W78E054DDG - 8-Bit 40MHz 16KB Flash MCU | Nuvoton

Nuvoton W78E054DDG is an 8-bit 8052-compatible microcontroller rated up to 40 MHz, with 16 KB of Flash program memory and operating from 2.4 V to 5.5 V. The device is supplied in an LQFP-48 package and is positioned for embedded security, alarm, barcode-reader, KVM, key-phone, user-interface, and industrial-control systems. Its 32 I/O pins provide a practical interface count for digital control and communication designs. An 8-bit microcontroller is a compact embedded-processing IC built around an 8-bit CPU, program memory, data memory, timers, serial interfaces, and digital I/O. The W78E054D belongs to the broader 8051/8052 microcontroller family and combines legacy peripheral compatibility with a wider operating-frequency range. Its selectable 6T or 12T architecture is designed to support traditional 12T 8051-compatible hardware while accommodating higher clock rates. Principal device characteristics include a 40 MHz maximum operating frequency, 16 KB of Flash program memory, 32 I/O pins, a 2.4 V to 5.5 V supply range, and an external oscillator configuration. Flash memory retains programmed firmware without a removable programmer, while the broad supply-voltage range supports both 3.3 V and 5 V equipment when the associated peripheral and I/O limits are respected. The W78E054D uses the 8052 processor architecture and provides a conventional register-based embedded-control platform. Nuvoton describes the family as configurable and pin-compatible with traditional 12T 8051 implementations. That compatibility makes migration from an appropriately designed 8051 system possible, although firmware, timing, oscillator, and peripheral behavior should still be verified before production use. Typical applications include electronic access controls, alarm panels, barcode readers, keyboard-video-mouse equipment, key-phone systems, industrial human-interface panels, and embedded industrial controllers. The 32 available I/O pins are especially useful when a design must combine sensing inputs, relay or actuator outputs, display interfaces, and serial communication without using a larger package. The principal engineering consideration is that this device has an external oscillator rather than a listed internal oscillator. The clock source, capacitance, startup behavior, and all timing-dependent firmware must therefore be designed for the external clock configuration. Designers should also confirm the exact LQFP-48 pin mapping and the latest Nuvoton datasheet before committing a new PCB. This product page combines verified distributor pricing, lifecycle information, package characteristics, and application guidance with explicit identification of the remaining pinout and supply-chain details. It also distinguishes confirmed drop-in replacements from related family members that were not verified as exact replacements, helping engineers avoid assumptions based only on similar part numbers.

询价 联系我们
W78E054DFG - 40MHz 8-Bit 8051 MCU | Nuvoton | 16KB Flash
W78E054DFG

W78E054DFG - 40MHz 8-Bit 8051 MCU | Nuvoton | 16KB Flash

Nuvoton Technology Corporation W78E054DFG is an 8-bit 8051-compatible microcontroller operating at up to 40 MHz, with 16 KB of internal flash memory and a 44-pin PQFP package. It supports a 2.4 V to 5.5 V operating-voltage range and an industrial temperature range of -40°C to 85°C. The W78E054D family combines a traditional 8051 core with modern embedded-control functionality for security, alarm, barcode-reader, KVM, keypad, user-interface, and IPC equipment. An 8-bit 8051 microcontroller is an embedded-processing IC built around the 8051 instruction set and a compact register and memory architecture. Within the semiconductor hierarchy, it belongs to the microcontroller category, combining a CPU core, program memory, data memory, timers, serial interfaces, and interrupt-control resources on one integrated circuit. The W78E054D is marketed as a 6T or 12T 8051 MCU that is configurable and pin-compatible with traditional 12T 8051 designs. Key characteristics include an 8-bit processing engine, a maximum clock frequency of 40 MHz, and 16 KB of flash memory organized as 16K by 8 bits. Its operating range of 2.4 V to 5.5 V allows use in both 3.3 V and 5 V equipment. The 44-pin PQFP package provides a surface-mount option for compact control boards, while the -40°C to 85°C rating supports industrial-temperature deployments. The W78E054D/W78E052D series is designed to accommodate a wider frequency range with low power consumption. Its 8051-compatible architecture supports familiar instruction set and peripheral conventions, easing firmware migration from suitable legacy 8051 products. Because it is specified as configurable and pin-compatible with traditional 12T 8051 devices, board-level compatibility depends on the selected package suffix, oscillator implementation, reset circuitry, and the exact functions assigned to shared pins. Typical applications include electronic security systems, alarm panels, barcode readers, KVM controllers, industrial telephones, compact human-machine interfaces, and embedded IPC equipment. These systems benefit from the combination of 16 KB flash, 40 MHz processing capability, and a 2.4 V to 5.5 V supply range. The 44-pin PQFP format is particularly appropriate for volume-produced industrial and commercial control products that require a surface-mount assembly process. Designers should verify oscillator, reset, and peripheral connections directly against the manufacturer datasheet before replacing an existing 12T 8051. The W78E054 family is pin-compatible with traditional 12T devices when the corresponding configuration and package are used, but firmware, memory, timing, and peripheral availability must also be reviewed. The W78E054D is currently marked Not Recommended for New Designs, so existing-product maintenance may be more appropriate than new platform selection. This page combines verified manufacturer and distributor information with lifecycle context, application guidance, package constraints, and a strictly filtered drop-in comparison. It distinguishes confirmed W78E054D attributes from parameters that remain unavailable in the supplied source data, helping engineers evaluate procurement and redesign decisions without treating generic 8051 specifications as guaranteed W78E054DFG facts.

询价 联系我们
W78E054DLG - 40MHz 8052 8-Bit 16KB MCU | Nuvoton | LQFP-48
W78E054DLG

W78E054DLG - 40MHz 8052 8-Bit 16KB MCU | Nuvoton | LQFP-48

Nuvoton Technology Corporation W78E054DLG is an 8-bit 8052-compatible microcontroller operating up to 40 MHz, with 16 KB of flash memory and a 48-pin LQFP package. The verified listing specifies a 2.4 V to 5.5 V operating range, a -40 °C to 70 °C temperature range, Pb-free construction, and an 8052 instruction set. These characteristics place the W78E054DLG in the broader 8-bit embedded-control MCU category, where on-chip flash, digital I/O, timing resources, and serial peripherals are combined for compact control designs. An 8-bit microcontroller is a microprocessor core designed primarily for embedded control rather than desktop computing. The W78E054D/W78E052D family extends the 8052 architecture to higher operating frequencies and provides integrated program memory for standalone applications. At up to 40 MHz, the device is suitable for systems requiring fast deterministic I/O handling while remaining manageable in an 8-bit software ecosystem. Its 48-LQFP package exposes substantially more I/O than smaller packages while remaining compatible with automated PCB assembly. The verified features emphasize a 16 KB flash program-memory capacity, 40 MHz maximum clock operation, and a broad 2.4 V to 5.5 V supply range. The 2.4 V minimum operating voltage supports low-voltage designs, while the upper limit allows operation from conventional 5 V systems. The stated -40 °C to 70 °C commercial temperature range supports industrial equipment, instrumentation, appliances, access controls, and compact controller modules that do not require the wider temperature limits associated with extended-temperature components. As an 8052-compatible device, the W78E054DLG can execute standard 8051-family instructions while benefiting from the faster clock and denser flash implementation in this family. The verified data identifies the device as a 16K × 8 flash MCU, providing 16,384 bytes of program storage. Detailed RAM organization, interrupt-vector arrangement, peripheral configuration, oscillator requirements, and electrical timing values are not included in the supplied excerpts and should be confirmed against the manufacturer datasheet before schematic or firmware release. Typical application areas include small industrial controllers, sensor-conditioning and data-acquisition modules, motor and relay control, security and access-control equipment, and consumer appliances. Its 48-LQFP footprint is particularly useful when a design needs more external connections than a small-outline microcontroller can provide. In each case, firmware must account for the device's 8-bit architecture and peripheral assignment shown in the authoritative pinout and reference manual. A critical design step is to verify every power, clock, reset, and I/O connection against the official W78E054D/W78E052D datasheet before PCB layout. The supplied search excerpts do not expose the complete pin names, exposed-pad arrangement, decoupling requirements, or recommended external components. Engineers should also confirm the oscillator source, programming interface, reset strategy, unused-pin treatment, and operating voltage tolerance for the assembled production configuration. This product record consolidates verified distributor pricing, package information, operating limits, and sourcing links into one engineering reference. It also separates confirmed parameters from missing datasheet details, helping designers avoid assumptions about pin compatibility, replacement parts, memory availability, or peripheral behavior while preserving traceability to current market data.

询价 联系我们
W78E054DPG - 8-Bit 40MHz 8051 MCU | Nuvoton
W78E054DPG

W78E054DPG - 8-Bit 40MHz 8051 MCU | Nuvoton

The Nuvoton Technology Corporation W78E054DPG is an 8-bit W78 8052-compatible microcontroller with 16KB (16K x 8) Flash program memory, 256 x 8 bits of RAM, 36 I/O pins, and a maximum operating frequency of 40MHz. The device is supplied in a 44-pin PLCC package and operates from 2.4V to 5.5V over a -40°C to +85°C temperature range. An 8-bit microcontroller is a compact embedded-control processor designed to execute firmware, read inputs, and control outputs in equipment such as security systems, barcode readers, industrial controllers, user interfaces, and communication products. Within the semiconductor hierarchy, the W78E054DPG belongs to the 8051-compatible MCU family, combining a CISC instruction set with integrated program memory, data memory, timers, serial interfaces, and parallel I/O. The W78E054DPG provides 16KB of Flash memory for firmware storage and 256 x 8 bits of RAM for working data. Its 36 available I/O lines support external sensors, switches, indicators, actuators, and peripheral interfaces. The configurable 6T/12T architecture and external oscillator provide flexibility for designs based on the traditional 12T 8051 interface. Operation across 2.4V to 5.5V also accommodates legacy 2.5V, 3.3V, and 5V system environments. The maximum clock frequency of 40MHz makes the device suitable for control tasks that require deterministic embedded processing without a higher-cost application processor. Its 8052-compatible architecture supports established 8051 development methods, while the integrated Flash memory permits field-programmable firmware rather than a mask-programmed ROM implementation. The PLCC-44 package is intended for socketed or board-level assembly where serviceability and a compact leaded footprint are important. Typical applications include alarm and security panels, barcode-reader interfaces, keyboard and telephone equipment, kiosk and user-interface controllers, industrial peripherals, and compact embedded IPC systems. For these uses, the combination of 36 I/O pins, 16KB Flash, 256 x 8-bit RAM, and 2.4V to 5.5V operation provides sufficient resources for supervisory control, protocol handling, and peripheral coordination. Designers should verify oscillator, reset, and memory-interface requirements against the manufacturer datasheet before layout. Because the product is classified Not Recommended for New Designs, existing equipment maintenance can justify sourcing this NRND device, but new platforms should assess currently supported Nuvoton MCU families rather than assuming long-term availability. This product record combines manufacturer lifecycle information, distributor specifications, packaging data, and application-focused engineering guidance. It also distinguishes verified source data from unavailable commercial information, making the W78E054DPG easier to evaluate for legacy-system maintenance without presenting unverified pricing, pin assignments, or replacement claims as facts.

询价 联系我们
W78E058DDG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton | DIP-40
W78E058DDG

W78E058DDG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton | DIP-40

Nuvoton Technology Corporation W78E058DDG is an 8-bit W78 8051-compatible microcontroller with 40 MHz operating frequency, 32 KB of flash program memory, 512 bytes of RAM, and 36 I/O pins in a 40-pin DIP package. The device is designed for embedded control applications requiring a familiar 8051 instruction set, integrated flash memory, and operation from a 2.4 V to 5.5 V supply range. Its 40-pin DIP construction supports prototyping, legacy-controller upgrades, and through-hole industrial control assemblies. An 8051-compatible microcontroller is an embedded-processing IC built around the classic 8051 core architecture. It combines a CPU, program memory, data memory, parallel I/O, timers, serial communication functions, and interrupt support on one device. The W78E058 series extends that established platform with on-chip flash rather than relying on an external program-memory device. Within the semiconductor hierarchy, this part belongs to the microcontroller class and the more specific 8-bit embedded-controller category. The principal features include 32 KB (32K × 8) flash, 512 × 8 bits of RAM, 36 I/O pins, and a maximum stated operating frequency of 40 MHz. The 2.4 V to 5.5 V operating range permits use in 2.5 V, 3.3 V, and 5 V equipment. According to the manufacturer W78E058D product information, the family is configurable and pin-compatible with traditional 12-transistor 8051 devices, while package options include DIP40. The selected W78E058DDG ordering code corresponds to the 40-pin DIP configuration. Internally, the MCU follows the CISC-oriented 8051 execution model and uses a W78 core with integrated flash program storage. The 40 MHz clock rating provides substantially more timing headroom than traditional 12 MHz-class 8051 implementations, supporting faster peripheral operation and more demanding control loops. Because interrupt-driven and polling architectures remain central to 8051 designs, existing toolchains and software practices can often be adapted, although the W78E058D documentation must be consulted for peripheral behavior and clock requirements. Typical uses include industrial controller boards, appliance control panels, keyboard and human-interface modules, programmable timers, data-acquisition controllers, and legacy peripheral upgrades. The 36 available I/O pins are especially useful when a system needs multiple digital inputs and outputs around a single controller. For designs requiring more analog functions, communication nodes, or compact surface-mount packaging, a different microcontroller family may provide a better integration level. When designing a PCB around the W78E058DDG, preserve the documented 40-pin DIP footprint and provide suitable bypass capacitance at the power pins. Validate oscillator timing, reset behavior, and I/O drive limits against the manufacturer datasheet before production. Migration from a conventional EPROM-based 8051 should also include checks for flash-specific programming, erase, and code-execution behavior. This product page consolidates verified distributor specifications, manufacturer family information, package constraints, and practical design guidance. It also distinguishes a genuine 40-pin drop-in option from candidates whose memory, speed, or package differences require schematic and firmware verification before substitution.

询价 联系我们
W78E058DFG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton
W78E058DFG

W78E058DFG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton

The Nuvoton Technology Corporation W78E058DFG is an 8-bit 8052-compatible W78 microcontroller with a 40 MHz maximum speed and 32 KB of flash program memory in a 44-pin PQFP package. It operates from 2.4 V to 5.5 V, providing a broad supply-voltage range for embedded industrial control, IoT equipment, automation, motor-control, metering, and low-power board designs. The device also provides 512 bytes of RAM and 36 I/O pins according to the verified technical listing. An 8-bit microcontroller is a compact embedded processor designed to execute firmware that senses inputs, controls outputs, and manages communication or timing tasks. The W78E058DFG belongs to the W78 8051-family hierarchy, where the 8052 CPU combines an 8-bit CISC architecture with integrated program memory, RAM, and peripheral functions. This places it between general-purpose microcontrollers and simple fixed-function controllers for designs requiring flexible firmware-based behavior. The primary verified features are 32 KB of flash program memory, 512 bytes of internal RAM, a 40 MHz operating speed, 36 I/O pins, and a 2.4 V to 5.5 V supply range. Its 44-pin PQFP form factor supports conventional leaded-board assembly and provides more connection positions than smaller 8-bit packages. The W78E058D family is also described by Nuvoton as configurable and pin-compatible with traditional 12T 8051 designs, making the device relevant to legacy 8051 board upgrades when the electrical and peripheral requirements are matched. The W78E058D family uses an 80C51-compatible CISC architecture. Program storage in flash supports firmware revision and configuration tasks that are more difficult with mask-programmed devices, while 512 bytes of RAM support working variables, stack operations, and small data buffers. A 40 MHz clock rating provides additional timing headroom for multi-step serial communication, control loops, and periodic peripheral servicing, although actual throughput depends on the instruction mix and firmware implementation. Typical application areas include industrial controllers, connected sensing equipment, compact automation controllers, motor-control interfaces, utility or product metering, and embedded IoT nodes. The 36 available I/O positions are particularly useful when a system needs discrete sensing and actuator connections in addition to its serial interfaces. Firmware and peripheral configuration should be checked against the selected W78E058D package variant before design release. For hardware design, use the 44-pin PQFP land pattern, validate the selected oscillator and reset implementation against the manufacturer datasheet, and place bypass capacitors close to the supply pins. The permitted operating range of 2.4 V to 5.5 V must also be checked for every attached peripheral and communication device. The supplied search results do not expose the complete pin map, so pin assignments should not be inferred from generic 8051 diagrams without cross-checking the official data.

询价 联系我们
W78E058DLG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton
W78E058DLG

W78E058DLG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton

Nuvoton Technology Corporation W78E058DLG is an 8-bit 8051-compatible microcontroller operating from 2.4 V to 5.5 V, with a 40 MHz clock, 32 KB of Flash memory, and a 48-pin LQFP package measuring 7 mm by 7 mm. The distributor data identifies this device as a Pb-free part associated with the W78E058 series and an operating temperature range of -40 °C to 70 °C. An 8-bit microcontroller is a compact embedded-control IC used to execute firmware, read inputs, control outputs, and coordinate peripheral functions. In the product hierarchy, the W78E058DLG is a microcontroller, a programmable semiconductor, and a member of Nuvoton's 8051-family devices. Its 40 MHz operating clock provides the execution rate for embedded control tasks, while its 32 KB Flash memory provides nonvolatile program storage for application firmware. The principal verified characteristics are the 8-bit CPU architecture, 40 MHz maximum clock, 32 KB Flash configuration, 512-byte Flash information area reported by LCSC, 2.4 V to 5.5 V supply range, and 48-LQFP package. These parameters position the device for compact embedded systems operating from conventional 5 V supply rails or lower-voltage circuitry within the stated range. The supplied distributor records do not expose detailed RAM size, peripheral configuration, timer channels, ADC characteristics, or package pin assignments. The W78E058DLG combines embedded processing and Flash program storage in a surface-mount LQFP-48 format. Its 7 mm by 7 mm body provides a mechanically manageable option for leaded through-hole assembly where a QFN package would be unsuitable. At 40 MHz, the device offers substantially more timing headroom than legacy 8051 systems commonly clocked at much lower frequencies, although actual response time still depends on the instruction mix and firmware workload. Typical engineering uses include compact industrial controllers, appliance-control modules, motor-control peripherals, data-acquisition front ends, and embedded sensor interfaces when the selected firmware and external circuitry match the device's documented resources. The 5.5 V maximum supply supports conventional industrial and consumer logic environments, while the 2.4 V minimum allows operation from suitably regulated lower-voltage rails. Design work should begin by confirming every required peripheral, memory resource, and package pin against the manufacturer datasheet before schematic capture. Designers should not infer ADC, timer, serial-interface, or GPIO capabilities from the family name alone because those details were not present in the supplied verified data. The 48-pin LQFP footprint also requires adequate routing space around all leads and appropriate solder-assembly profile control. This page consolidates the exact distributor-reported W78E058DLG specifications, current pricing evidence, sourcing links, and replacement-status information. It also separates verified facts from unresolved attributes, helping engineers avoid treating distributor snippets as a substitute for the complete manufacturer datasheet when making PCB or firmware decisions.

询价 联系我们
W78E058DPG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton | PLCC-44
W78E058DPG

W78E058DPG - 8-Bit 40MHz 32KB Flash MCU | Nuvoton | PLCC-44

Nuvoton W78E058DPG is an 8-bit 8052-compatible W78 microcontroller with a 40 MHz maximum operating frequency, 32 KB (32K x 8) Flash program memory, 512 x 8 bits of RAM, and 36 I/O pins in a 44-pin PLCC package. It operates across a 2.4 V to 5.5 V supply range and is specified for -40°C to +85°C industrial-temperature applications. The device is currently Not Recommended for New Designs, so engineers should confirm availability, longevity, and any program-memory compatibility requirements before starting a new design. An 8052-compatible MCU is an embedded microcontroller built around the established 8-bit 8051/8052 instruction-set architecture. Within the product hierarchy, the W78E058D belongs to the Nuvoton 8-bit 8051 MCU family and combines a 6T/12T configurable core with Flash program memory. This architecture is appropriate for compact control systems that need deterministic control logic, moderate processing capacity, and broad peripheral integration without the cost or complexity of a higher-bit MCU. The principal device parameters include an 8-bit architecture, 40 MHz operating speed, 32 KB Flash memory, 512 bytes of RAM, 36 I/O pins, and a 44-pin PLCC package. According to Nuvoton product information, the W78E058D family is configurable and pin-compatible with traditional 12T 8051 devices. Its operating range of 2.4 V to 5.5 V also supports both lower-voltage and legacy 5 V equipment designs. The W78E058D family combines Flash program memory with an 8052-compatible core and is positioned for embedded controls including security and alarm equipment, barcode readers, KVM equipment, key phones, user interfaces, and industrial control products. The 36 available I/O pins provide substantial peripheral connectivity for sensors, displays, communication interfaces, and discrete control signals while retaining the familiar 8051 software ecosystem. For new designs, NRND status is the primary selection consideration. An existing product using the W78E058DPG can generally be maintained when its electrical, memory, timing, and software requirements remain unchanged, but designers should evaluate an active Nuvoton MCU or another currently supported platform when beginning a new production program. A firmware migration is not necessarily required for an identical device, although peripheral changes, memory layout, timing, and package differences require careful review. When laying out a 44-pin PLCC design, preserve the component's specified pin arrangement and provide suitable bypass capacitance and signal-integrity routing for external clock, reset, and I/O signals. Socketed PLCC assemblies may be convenient for prototypes or service programs, whereas exposed-pad leaded PLCC packages generally require inspection for solder-joint reliability after rework. The manufacturer's datasheet remains the controlling reference for pin names, electrical limits, and programming details. This product page consolidates verified manufacturer and distributor information, operating limits, package data, pricing availability status, and a documented drop-in comparison for the verified W78E058B40PL candidate. Unlike a raw distributor listing, it also distinguishes a confirmed pin-compatible replacement from unverified catalog recommendations and identifies where additional engineering validation is still required.

询价 联系我们
W78E365A40DL - 8-Bit 40MHz 64KB Flash MCU | Nuvoton
W78E365A40DL

W78E365A40DL - 8-Bit 40MHz 64KB Flash MCU | Nuvoton

Nuvoton Technology Corporation W78E365A40DL is an 8-bit W78 8051-compatible CMOS microcontroller with a 40 MHz maximum clock, 64KB of Flash program memory, 1.25KB of RAM, and 32 I/O pins in a 40-pin PDIP package. It is designed for embedded control applications that require flash-based firmware storage, broad digital I/O, and an established 8051-compatible software environment. An 8-bit microcontroller is a compact computing device that integrates a CPU, program memory, data memory, timers, serial interfaces, and parallel I/O on one integrated circuit. Within the product hierarchy, the W78E365A40DL is an 8-bit MCU, then a W78-series microcontroller, then an 8051-compatible controller, and finally a general-purpose embedded processor. This family is commonly used for cost-sensitive products where deterministic control and compact firmware are more important than high arithmetic throughput. The W78E365A40DL combines 64KB of Flash program memory with 1.25KB of on-chip RAM and 32 I/O pins. Its operating frequency reaches 40 MHz, allowing faster instruction execution than lower-speed 8051 derivatives. The internal oscillator, 5 V supply description, and through-hole PDIP format are useful for industrial controllers, appliance controls, meters, and legacy 8051 equipment. A tube package also supports prototype and manual-production workflows. The W78E core follows an 8-bit CISC architecture associated with the 8051 instruction set. Flash memory permits field reprogramming without removing the microcontroller from its socket, while the 32 available I/O pins support digital inputs, outputs, and externally interfaced peripherals. Designers should confirm each peripheral’s alternate-pin function, reset requirements, oscillator connections, and available port behavior against the Nuvoton W78E365A40DL datasheet before finalizing the board. Typical uses include industrial sequence controllers, timer-based appliances, digital signal input modules, keypad interfaces, and small motor or relay control panels. The 40-pin PDIP package is particularly useful where socketed components, field replacement, or through-hole serviceability are preferred. The 40 MHz clock rate also makes this device more responsive than many 8-bit MCUs operated at substantially lower frequencies. For reliable implementation, use the manufacturer’s oscillator and reset configuration, connect unused inputs to defined levels, and place decoupling capacitors close to the supply pins. Because this is a legacy-compatible 40-pin DIP microcontroller, pin-sensitive drop-in replacements should be selected only after their complete pin descriptions, memory organization, peripheral set, and electrical limits have been compared. This product page combines the manufacturer-oriented electrical identity, verified package and memory characteristics, practical legacy-control use cases, and replacement-screening guidance needed to evaluate the W78E365A40DL for an existing 8051-based design.

询价 联系我们
W78E365A40FL - 40MHz 8051 MCU with 64KB Flash | Nuvoton
W78E365A40FL

W78E365A40FL - 40MHz 8051 MCU with 64KB Flash | Nuvoton

Nuvoton Technology Corporation W78E365A40FL is an 8-bit 8052 CISC flash microcontroller with a 40 MHz maximum clock, 64 KB of program flash, 1.25 KB of RAM, and 36 I/O pins in a 44-pin PQFP package. The device also includes a 4 KB boot block and an internal oscillator, making it suitable for compact embedded-control designs that require moderate processing speed and integrated nonvolatile firmware storage. An 8-bit CISC microcontroller is a semiconductor controller that executes an instruction set designed around compact, cycle-efficient operations. Within the broader hierarchy of embedded processing, this device belongs to the 8051/8052 MCU family, integrates a CPU, flash memory, RAM, timers, serial interfaces, and I/O ports, and is intended for industrial control, instrumentation, appliance control, and compact embedded products. Its 40 MHz operating speed supports faster control-loop and peripheral servicing than lower-rate 8051 derivatives. The W78E365A40FL combines 64 KB of flash with a 4 KB boot block, providing 68 KB of separately organized nonvolatile memory when both regions are considered. Its 1.25 KB RAM provides working memory for variables, stack operations, and peripheral buffers. With 36 I/O pins, the device can support multiple digital interfaces and discrete control signals while retaining the external connectivity associated with a 44-pin PQFP package. The W78E365A40FL uses an 8052-compatible 8-bit CISC core, flash program memory, and an internal oscillator. The flash architecture permits firmware to be programmed or rewritten during development and production updates rather than relying on masked ROM. Its operating architecture is suited to interrupt-driven embedded systems, where timers, serial communications, and external events can coordinate real-time control functions through the microcontroller’s peripheral set. Typical applications include industrial equipment controllers, data acquisition and instrumentation modules, motor and relay-control boards, programmable logic controllers, appliance interfaces, and embedded products requiring a combination of 36 digital I/O lines and 40 MHz processing. The 44-pin PQFP footprint also supports designs that benefit from a conventional leaded package rather than a very-small-body surface-mount option. Designers should verify oscillator, reset, power, and I/O conditions against the manufacturer datasheet before committing a PCB layout. Because this is a leaded PQFP device, include adequate board spacing, inspect solder joints after assembly, and review the operating-voltage limits and decoupling requirements for the intended power environment. This product page consolidates the verified device identity, package, memory organization, interface count, and application guidance, while distinguishing confirmed characteristics from parameters that still require validation against the complete manufacturer datasheet.

询价 联系我们
W78E365A40PL - 8-Bit 40MHz 64KB Flash MCU | Nuvoton
W78E365A40PL

W78E365A40PL - 8-Bit 40MHz 64KB Flash MCU | Nuvoton

The Nuvoton W78E365A40PL is an 8-bit 8052-compatible microcontroller with a 40 MHz maximum speed, 64 KB of in-system programmable Flash program memory, and a 44-LCC package. It also provides 1.25 KB of RAM and 36 general-purpose I/O pins according to the published component specifications. The device is identified by DigiKey as an 8052 W78 microcontroller from Nuvoton Technology Corporation. A microcontroller is a programmable semiconductor that integrates a CPU core, program memory, data memory, and peripherals into one device. The W78E365 belongs to the 8-bit microcontroller hierarchy, uses a 8052-compatible instruction set, and is positioned for compact embedded control systems that need Flash-based firmware updating without removing the device from its circuit. Its in-system programming capability allows firmware to be updated after assembly. Key characteristics include a 40 MHz operating speed, 64 KB of Flash program memory, 1.25 KB of RAM, 36 I/O pins, an internal oscillator, and Timer 2 output capability. Mouser describes the device as having 64 KB Flash, a 4 KB boot block, and 1 KB plus 256 bytes of RAM, which supports in-system firmware update workflows. The published listing also identifies the W78E365A40PL as a lead-free device. The 44-LCC package provides 36 digital I/O pins around a relatively compact leaded footprint. This pin count suits control boards that need moderate amounts of discrete input and output while retaining a broadly available through-hole-style package. The 8052-compatible architecture also makes the device relevant to legacy 8051-family codebases where an established instruction set and peripheral arrangement are more important than a higher-bus-width processor. Typical uses include industrial control modules, appliance controllers, instrumentation interfaces, programmable logic devices, embedded timers, and compact data-acquisition or monitoring boards. A 40 MHz clock gives an 8-bit design additional instruction throughput, while the 64 KB Flash area provides practical room for boot code, application logic, and in-field update tables. When laying out a board, confirm the pin assignment and alternate-function multiplexing against the manufacturer datasheet before assigning external circuitry. Because this part is packaged in 44-LCC rather than a common small-outline package, verify connector footprint, hole pattern, and assembly thermal requirements early in the mechanical design.

询价 联系我们
W78E516DDG - 8-bit 8051 MCU, 64KB Flash, 40MHz | Nuvoton
W78E516DDG

W78E516DDG - 8-bit 8051 MCU, 64KB Flash, 40MHz | Nuvoton

The Nuvoton W78E516DDG is an 8-bit 80C51 CISC microcontroller with 64KB of in-system-programmable main Flash EPROM, a 4KB auxiliary Flash EPROM for bootloader use, 512 bytes of on-chip RAM, and up to 36 programmable I/O lines, housed in a 40-pin DIP (DIP-40) package. It operates from 2.4V to 5.5V and clocks at up to 40MHz across a -40C to +70C industrial range. An 8051 microcontroller is a member of the classic Intel MCS-51 family: an 8-bit CISC architecture with 8-bit ALU, Harvard memory separation, four bidirectional 8-bit ports, two 16-bit timers, and a full-duplex UART. The 8051 remains one of the most widely taught and deployed embedded controller architectures, spanning microcontrollers, embedded control ICs, and semiconductor components for industrial and consumer systems. Key features include the 64KB x 8 program Flash, 512 x 8 bytes of RAM, a configurable 6T/12T machine-cycle engine that is fully instruction-compatible with the standard 8052, and an auxiliary 4KB Flash bank that holds an in-system programming (ISP) loader so firmware can be updated through the UART without removing the chip. Wide 2.4V-5.5V operation allows the same board to run from 3.3V or 5V logic. Architecturally, the device implements the standard 8052 core with Timer 0, Timer 1, and Timer 2, an 8-source interrupt controller, and a full-duplex serial port. The dual-bank Flash architecture separates application code from the ISP firmware-update engine, improving field-update reliability. Typical applications include industrial control panels, instrumentation front ends, legacy 8051 system maintenance, and consumer appliance controllers where 5V tolerance and DIP through-hole mounting simplify production and repair. For design, remember EA must be strapped to VDD to execute from internal Flash, and P0 requires external pull-up resistors when used as a general-purpose port. This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet.

询价 联系我们
W78E516DFG - 40MHz 8-Bit 64KB Flash MCU | Nuvoton
W78E516DFG

W78E516DFG - 40MHz 8-Bit 64KB Flash MCU | Nuvoton

Nuvoton Technology Corporation W78E516DFG is an 8-bit W78-series 8051-compatible microcontroller with 64KB of program memory, 512 bytes of RAM, 36 I/O pins, and a maximum clock frequency of 40MHz. The device operates from 2.4V to 5.5V over a -40°C to +85°C temperature range and is supplied in a 44-pin MQFP/BQFP package measuring 10mm by 10mm. These specifications place the W78E516DFG in the standard 8-bit embedded microcontroller category, where it is intended for compact control systems requiring broad I/O availability and multi-source 8051-compatible software support. An 8051-compatible microcontroller is an embedded processing IC that integrates a CPU core, program memory, data memory, I/O ports, timers, serial interfaces, and interrupt-control logic on one device. Within the product hierarchy, the W78E516DFG is an 8-bit microcontroller, part of the W78 8051 family and the broader microelectronics and embedded-control semiconductor category. Its 36 available I/O pins make it useful when a board must connect multiple digital inputs, outputs, displays, sensors, relays, or communication peripherals without an external I/O expander. The principal feature set includes 64KB of 64K x 8 program memory, 512 bytes of 8-bit RAM, 36 I/O pins, and operation up to 40MHz. The operating voltage range of 2.4V to 5.5V allows use in both 3.3V and 5V embedded equipment, provided each connected peripheral uses compatible logic levels. The 44-pin surface-mount package supports compact industrial, appliance, instrumentation, and control designs, while its broad temperature specification supports operation across the stated -40°C to +85°C range. At the hardware level, the W78E516DFG combines the familiar 8051 execution environment with dedicated on-chip resources for embedded I/O and timing. The advertised 40MHz maximum speed supports faster control-loop execution than lower-frequency 8-bit designs, while 512 bytes of RAM provides working storage for variables and short data buffers. The exact clock source, timer implementation, serial-interface ratings, reset behavior, and interrupt vector details must be confirmed in the manufacturer datasheet before the device is used in safety-critical or timing-sensitive designs. Typical uses include industrial control modules, programmable timers, temperature controllers, small motor-control boards, LED displays, data-acquisition front ends, and legacy 8051 equipment. A designer can use the 36 I/O pins for discrete sensing and actuator control, two-chip serial communication where supported, and timer-driven scanning or pulse generation. Firmware reuse from established W78 or compatible 8051 projects can reduce development time, but peripheral mapping and timing must still be checked for each board revision. A key design consideration is validating the external support circuit and memory configuration in the exact datasheet revision used for production. Decoupling capacitors, oscillator components, programming connections, reset behavior, and exposed-pad or thermal requirements must follow the manufacturer's reference layout. Because the available verified listings do not expose the complete pin table, this page does not publish an inferred 44-pin assignment; consult the manufacturer datasheet and compare every net before substituting a part. This page consolidates verified distributor specifications, package information, sourcing links, replacement evidence, and engineering selection guidance for the W78E516DFG. Its key information gain is a clear separation between confirmed facts and parameters that require datasheet verification, helping engineers evaluate the MCU without confusing an explicit manufacturer replacement with an unverified pin-compatible equivalent.

询价 联系我们
W78E516DLG - 40MHz 8-bit 8052 MCU, 64KB Flash | Nuvoton
W78E516DLG

W78E516DLG - 40MHz 8-bit 8052 MCU, 64KB Flash | Nuvoton

The Nuvoton W78E516DLG is an 8-bit 8051-compatible microcontroller with 64KB of Flash memory, a 40MHz maximum operating frequency, and a 48-pin LQFP package. It operates from a 2.4V to 5.5V supply range and is identified as a Pb-free W78 series device for embedded control applications. The W78E516DLG combines the familiar 8052 instruction-set architecture with integrated Flash program memory, making it suitable for legacy-compatible controller upgrades that require modern nonvolatile firmware storage. An 8051-compatible microcontroller is a specialized microcontroller architecture designed around an 8-bit accumulator and register-based instruction set. In the broader hierarchy, it belongs to the 8-bit MCU, embedded controller, and semiconductor categories. The W78E516DLG targets applications that benefit from broad software compatibility, deterministic embedded control, and a compact surface-mount footprint rather than the larger peripheral set or higher processing bandwidth of a 32-bit MCU. The principal device characteristics include 64KB of Flash memory, a 40MHz operating frequency, an 8-bit CPU, and operation from 2.4V to 5.5V. The LQFP-48 package provides 48 external leads for its processor, memory, clock, reset, interrupt, and I/O functions. Its stated Pb-free construction is important for lead-free manufacturing environments, while its 2.4V minimum operating voltage allows the device to be used with both 3.3V and conventional 5V embedded systems, subject to individual peripheral and timing requirements. The W78 series uses an enhanced 6T/12T 8051-compatible architecture, as described by Nuvoton for the W78E516D family. This compatibility is significant when maintaining or porting an existing 8051 codebase: developers can preserve peripheral-oriented software organization and familiar development conventions while using a 64KB Flash implementation. The supplied verified results identify the W78E516DLG specifically as a 64K x 8 Flash device based on the 8052 architecture, but do not provide detailed register, timing, or memory-access values. Typical uses include industrial control panels, appliance controllers, building equipment, legacy peripheral emulators, and embedded products that began life around an 8051-compatible architecture. A 40MHz clock provides additional timing headroom for interrupt-driven control and communication routines, while 64KB of Flash is useful for moderate firmware images. Designers migrating from a slower discrete 8051 design should still verify peripheral mapping, memory timing, oscillator requirements, and pin-level board compatibility before production release. The primary design consideration is compatibility with the existing board and firmware rather than maximum general-purpose performance. Confirm the exact 48-pin LQFP pin assignment, supply sequencing, reset behavior, oscillator configuration, and peripheral multiplexing against the manufacturer datasheet before layout signoff. Because only summarized distributor and manufacturer-page data were supplied here, detailed RAM size, timer counts, serial-interface configuration, maximum I/O current, and absolute temperature limits remain datasheet-verification items. This page consolidates the verified W78E516DLG specifications, package information, sourcing links, and application guidance into an engineer-oriented product record. It also distinguishes verified values from unavailable technical fields, making it easier to identify the exact datasheet information still required before schematic capture, PCB layout, firmware porting, or component substitution.

询价 联系我们
W78E516DPG - 8-Bit 40MHz 64KB Flash MCU | Nuvoton
W78E516DPG

W78E516DPG - 8-Bit 40MHz 64KB Flash MCU | Nuvoton

Nuvoton Technology Corporation W78E516DPG is an 8-bit W78 microcontroller based on the 8052 instruction set, operating at up to 40MHz with 64KB of program Flash in a 44-pin PLCC package. The device operates from 2.4V to 5.5V and supports in-system programming for firmware updates. An 8-bit microcontroller is a compact embedded-control device that combines a processor core, program memory, data memory, I/O ports, timers, and communication peripherals on one integrated circuit. The W78E516D/W78E058D family belongs to the broader 8051 microcontroller hierarchy, retaining compatibility with the standard 8052 instruction set while adding Flash EPROM and auxiliary Flash capabilities for firmware-intensive embedded products. The W78E516DPG provides 64KB of main Flash EPROM, 4KB of auxiliary Flash EPROM, and 512 bytes of RAM. Its 40MHz maximum operating frequency supports faster control-loop and serial-communication tasks than conventional 12MHz 8051-class devices. The package exposes 36 I/O lines, allowing connection to sensors, relays, displays, keypads, data converters, and other embedded-system peripherals. The supplied distributor records identify the device as Pb-free and specify an operating range of -40°C to 70°C for this orderable MPN. The W78E516D architecture is designed around an 8-bit CISC instruction set and expanded 8052-compatible software execution. On-chip Flash removes the need for an external program-memory device during normal embedded operation, while in-system programming allows firmware to be updated without removing the microcontroller from its assembled circuit. Auxiliary Flash can retain firmware or data outside the main 64KB program area, which is useful when application code must share the same package with a separate update or configuration region. Typical uses include industrial controllers, data-acquisition equipment, appliance controllers, motor-control systems, communication modules, and legacy 8051 products being migrated to a faster, Flash-based implementation. The combination of 40MHz operation, 36 I/O lines, and 64KB of program memory makes the device suitable for control systems requiring moderate computational throughput and several peripheral interfaces. System-level timing and peripheral availability should still be checked against the manufacturer datasheet before production release. PCB planning should reserve the complete 44-pin PLCC footprint and confirm the exact pin names, oscillator requirements, reset behavior, programming interface, and decoupling connections from the manufacturer documentation. Because PLCC44 is not represented by a dedicated package-diagram key in the available library, the package view uses the generic fallback rather than presenting an unverifiable pin drawing. This product page consolidates the verified distributor specifications, official Nuvoton family information, package constraints, sourcing facts, and replacement limitations for W78E516DPG. It distinguishes exact MPN evidence from family-level information and avoids presenting unverified pricing, detailed pin assignments, or unsupported substitute parts as confirmed facts.

询价 联系我们
W78E858A40FL - 40MHz 8052 8-Bit 32KB Flash | Nuvoton
W78E858A40FL

W78E858A40FL - 40MHz 8052 8-Bit 32KB Flash | Nuvoton

The Nuvoton W78E858A40FL is an 8-bit 8052-family W78 microcontroller operating at up to 40 MHz, with 32 KB of program Flash memory and 36 I/O pins in a 44-BQFP package. The W78E858A40FL is identified by the manufacturer and distributor listings as an 8052 W78 microcontroller with 32K x 8 Flash memory and a 40 MHz speed rating. The device also includes a 4 KB boot block, 128 bytes of EEPROM, and 768 x 8 RAM according to the product listing information. An 8-bit microcontroller is a compact embedded-control device that combines a processor core, program memory, data memory, peripheral interfaces, and I/O ports in one integrated circuit. The W78E858A40FL belongs to the W78 microcontroller family and is positioned for cost-sensitive embedded products requiring deterministic control, serial communication, counter and timer functions, and general-purpose digital I/O. Its 44-BQFP package provides a larger pin count than small-outline packages, allowing more external connections while remaining suitable for leaded or legacy-compatible PCB assembly. The principal device characteristics are a 40 MHz operating speed, 32 KB of Flash program memory, 768 x 8 RAM, 36 I/O pins, and a 5 V operating condition as stated in the product listing. The Flash architecture supports firmware storage and reprogramming-oriented designs, while the boot block provides a separate code area for boot-related functions. The operating features should be confirmed against the manufacturer datasheet for peripheral allocation, electrical limits, clock configuration, programming, and package details before a new design is released. Typical applications include industrial control panels, compact automation equipment, instrumentation, appliance controllers, communication modules, motor and relay-control systems, and general embedded products. The 36 I/O pins can support external sensing, actuator control, status indicators, and interface connections, while the 40 MHz CPU rate is useful for protocol handling and multi-peripheral control. A suitable design should provide stable 5 V supply decoupling and preserve the controller's reset, clock, and programming interfaces. For new layouts, use the 44-BQFP footprint and pin assignment defined by the manufacturer datasheet. Confirm the exposed-pad and thermal requirements, programming connector arrangement, and unused-pin treatment during hardware review. The request-a-quote form on this page can provide current commercial availability and lead-time information for the W78E858A40FL.

询价 联系我们
W78E858A40PL - 8-Bit 40MHz 8052 MCU | Nuvoton
W78E858A40PL

W78E858A40PL - 8-Bit 40MHz 8052 MCU | Nuvoton

The Nuvoton Technology Corporation W78E858A40PL is an 8-bit 8052-compatible W78 microcontroller operating at up to 40 MHz, with 32 KB of flash memory, a 4 KB boot block, and 128 bytes of EEPROM in a Pb-free package. It combines a 5 V operating supply with the legacy 8052 instruction set, making it suitable for embedded control, industrial equipment, data acquisition, and legacy-compatible peripheral designs. An 8-bit microcontroller is a semiconductor device that executes instructions from a central processing unit, memory, timers, serial interfaces, and digital I/O. Within the broader hierarchy of embedded systems, the W78E858A40PL belongs to the microcontroller class, integrates a complete control core with programmable peripherals, and operates without a separate external processor. Its 8052-compatible architecture supports integration with established 8051-family software and peripheral ecosystems. The principal benefits are its 40 MHz operating frequency, 32 KB flash capacity, dedicated 4 KB boot block, and 128-byte EEPROM. The boot-block partition allows firmware and boot-related code to occupy separate flash regions, supporting controlled startup and update behavior. The EEPROM provides a small nonvolatile storage area for calibration values, serial numbers, configuration data, or operating counters without consuming flash space. The W78E858A40PL is identified as a Pb-free component, helping support designs whose purchasing and manufacturing requirements limit hazardous substances in electronic assemblies. Its 5 V supply and 8-bit architecture make it especially appropriate for control boards that interface directly with 5 V digital sensors, relay drivers, display controllers, and legacy industrial peripherals while prioritizing straightforward firmware development. Typical uses include industrial instrumentation, programmable logic controllers, motor and relay controllers, data-logging equipment, keypad interfaces, and embedded serial-control systems. The 8052-compatible core and 40 MHz clock provide useful headroom for interrupt-driven acquisition, protocol handling, display updates, and supervisory control without requiring a higher-cost 32-bit processor. Designers should confirm the exact package dimensions, exposed-pad treatment, clock requirements, and peripheral pin assignments in the Nuvoton W78E858A40PL datasheet before layout release. PCB software should also check the complete pin-description table and use the manufacturer reference schematic to preserve signal integrity and correct decoupling. This page organizes the key W78E858A40PL specifications, application guidance, engineering considerations, verified source links, and substitution status into a design-focused resource that supports component evaluation and PCB planning.

询价 联系我们
W78ERD2A40FL - 40MHz 64KB 8052 MCU | Nuvoton | BQFP
W78ERD2A40FL

W78ERD2A40FL - 40MHz 64KB 8052 MCU | Nuvoton | BQFP

Nuvoton Technology Corporation W78ERD2A40FL is an 8-bit CMOS 8052-compatible microcontroller with a 40 MHz operating speed, 64 KB of 8-bit program flash, 1.25 KB of 8-bit RAM, and 36 I/O lines in a 44-BQFP package. It also includes a 4 KB boot block, a 6T architecture, a Programmable Counter Array, and operation from a 5 V supply. The W78ERD2A40FL belongs to the W78 family and supports the standard 8052 instruction set, making it suitable for embedded control designs that need broad legacy compatibility and a compact external bus interface. An 8-bit microcontroller is a programmable semiconductor containing a central processing unit, program memory, data memory, peripheral registers, and I/O ports on one integrated circuit. Within the product hierarchy, the W78ERD2A40FL is a general-purpose MCU, an embedded controller, and a member of the Nuvoton W78 family. Its 8052-compatible core provides a practical migration path for applications using standard 8051-class peripherals and software conventions. The principal advantages of this device are its 40 MHz clock rating, 64 KB flash organization, 36 available I/O lines, and dedicated boot-block storage. The 6T process designation identifies the manufacturing process used for the integrated circuit, while the Programmable Counter Array provides dedicated timing and capture functions that can reduce reliance on software polling. Four 8-bit I/O ports follow the established 8052 peripheral model, including software-selectable internal pull-ups on Port 0. Technically, the W78ERD2A40FL combines a fast 8-bit core with separate program and data memory regions. The 64 KB program memory is organized as 64K by 8 bits, while the 1.25 KB data RAM is organized as 1.25K by 8 bits. Its power-down mode can be entered without disrupting the processor state, supporting systems that need low-energy operating states. The device is intended for a 5 V operating environment and is identified as lead-free by the manufacturer product listing. Typical applications include industrial keypad and panel controllers, small motor-control systems, programmable timers, data-acquisition front ends, communication peripherals, legacy 8052 equipment, and embedded automation controllers. The 36 I/O lines provide useful connection density for switches, displays, sensors, actuators, and external bus devices in compact industrial control boards. A principal design consideration is the 5 V supply and the need to confirm clock, reset, memory-access, and peripheral connections against the manufacturer pin-description table. Designers should preserve the intended oscillator and decoupling arrangements, keep high-current outputs away from sensitive inputs, and budget timing margin when using the 40 MHz clock rating in a specific system. This product page consolidates the verified core specifications, package information, family alternatives, application guidance, and design considerations for engineers evaluating the W78ERD2A40FL. The comparison section emphasizes where closely related W78 devices differ in clock speed, while the practical notes focus on firmware migration, peripheral planning, decoupling, and PCB implementation.

询价 联系我们
W78ERD2A40PL - 40MHz 8-Bit 64KB Flash MCU | Nuvoton
W78ERD2A40PL

W78ERD2A40PL - 40MHz 8-Bit 64KB Flash MCU | Nuvoton

The Nuvoton W78ERD2A40PL is an 8-bit W78 microcontroller with a 40 MHz clock, 64 KB of flash program memory, 36 I/O pins, and a 44-pin PLCC package. It also includes a 4 KB boot block, six-transistor flash technology, a programmable comparator array, and operation from a 5 V supply. These features position the device for compact embedded-control, communications, and industrial-control designs requiring 8052-compatible processing in a lead-free package. A microcontroller is a programmable semiconductor that integrates a CPU, program memory, data memory, I/O ports, timers, interrupts, and serial-interface functions on one integrated circuit. The W78ERD2A40PL belongs to the 8-bit MCU hierarchy and follows the 8052 architecture. Within an embedded system, its flash memory stores the application program, while its ports and peripheral blocks connect the processor to sensors, indicators, actuators, and external communication circuits. The device combines 64 KB of flash with 256 bytes of on-chip RAM, 1 KB of auxiliary RAM, and 36 bidirectional I/O lines. Four 8-bit, bit-addressable ports are supplemented by a four-bit P4 port. Its three 16-bit timer/counters support periodic timing, event counting, and waveform generation, while the serial port provides a dedicated serial communications channel. The four-level interrupt priority system helps the firmware manage timing-sensitive events across nine interrupt sources. The W78ERD2A40PL operates at up to 40 MHz and is identified as an 8052-class W78 device. Its six-transistor flash implementation supports 64 KB of program storage and a separate 4 KB boot block for firmware management requirements. Idle and power-down modes provide two ways to reduce activity when the application does not need continuous processing, making the MCU suitable for both continuously active equipment and duty-cycled embedded products. Typical uses include industrial controllers, sensor-interface equipment, keypad and display modules, motor or relay control, programmable logic controllers, and communication-oriented embedded systems. Its 36 available I/O pins provide useful parallelism for discrete inputs and outputs, while the timer blocks reduce the need for external timing components. In a communications product, the serial port and interrupt architecture can support a host link or supervisory protocol alongside local real-time control. Designers should verify oscillator, reset, memory, and peripheral connections against the manufacturer datasheet before layout release. A 5 V supply is required for the stated operating configuration, so power sequencing, input levels, and decoupling must match the device requirements. PLCC assembly also requires attention to footprint pad geometry and soldering-profile control. The four-level interrupt priority and two low-power modes should be considered early when defining firmware architecture. This page consolidates the device identity, electrical specifications, memory architecture, peripheral resources, application guidance, and sourcing considerations into one engineering reference. It also distinguishes documented capabilities from unknown package-pin assignments and avoids presenting unverified substitute parts as drop-in replacements.

询价 联系我们
W78I052DDG - 8-Bit 8051 MCU, 8KB Flash, 40-DIP | Nuvoton
W78I052DDG

W78I052DDG - 8-Bit 8051 MCU, 8KB Flash, 40-DIP | Nuvoton

The Nuvoton Technology Corporation W78I052DDG is an 8-bit embedded microcontroller with 8KB Flash memory, a 2.4 V to 5.5 V operating supply range, and a Pb-free 40-DIP package. It is based on the W78 family of enhanced 8051-compatible controllers and is intended for cost-sensitive embedded products requiring compact code storage, low-voltage operation, and a through-hole package. The 40-DIP format also supports conventional PCB layouts, prototyping, and hand assembly where fine-pitch surface-mount packages are less convenient. An 8-bit microcontroller is the lowest-complexity class of programmable embedded controllers. In the component hierarchy, the W78I052DDG is a microcontroller and therefore belongs to the broader integrated-circuit and embedded-processing categories. Its practical role is to execute firmware, read inputs, control outputs, and coordinate basic peripherals within appliances, industrial equipment, access systems, and small control products. Compared with a 32-bit microcontroller, it emphasizes economical control and compact software rather than high-performance computation or large memory capacity. The verified product information identifies an 8KB Flash configuration, a 2.4 V to 5.5 V supply range, Pb-free construction, and an operating temperature range of -40°C to +85°C. The 40-DIP package provides 40 physical pins and straightforward through-hole assembly. These characteristics make the W78I052DDG relevant to designs that need a low-power, low-cost controller with legacy-compatible programming and board-level integration. Exact RAM, clock, peripheral, and electrical timing details must be confirmed in the manufacturer datasheet before schematic sign-off. Nuvoton's W78 family provides an established 8051-style software environment, allowing familiar C or assembly development workflows and access to common embedded-control patterns such as port-based I/O, timers, serial communication, and interrupt-driven control. An enhanced 8-bit core is particularly useful for supervisory and control tasks where deterministic state-machine behavior is sufficient but a higher-cost processor and larger memory system would add unnecessary cost, board area, and power consumption. Typical uses include appliance controllers, access-control terminals, industrial sequencers, instrumentation interfaces, lighting controls, and small embedded control boards. Its 8KB Flash supports compact firmware containing startup code, peripheral drivers, state logic, and user-interface handling. The 2.4 V to 5.5 V range permits operation across common low-voltage rails, although the designer must verify that every external peripheral shares a compatible voltage level or requires appropriate interfacing. When designing a board around the W78I052DDG, verify oscillator, reset, programming-interface, and decoupling requirements directly against the manufacturer datasheet. Do not infer missing pin functions from the 8051 family name. The supplied search excerpt confirms the 40-DIP package and general device class, but it does not provide a complete verified pin table; consequently, the pinout field is null rather than presenting an unverified drawing. This product record consolidates the verified supplier information, package identification, technical selection guidance, application fit, and explicitly qualified replacement analysis. It also distinguishes confirmed specifications from parameters that still require direct confirmation from the manufacturer datasheet, reducing the risk of an invalid engineering assumption.

询价 联系我们
W78I052DFG - 8KB 40MHz 8051 MCU | Nuvoton | BQFP-44
W78I052DFG

W78I052DFG - 8KB 40MHz 8051 MCU | Nuvoton | BQFP-44

Nuvoton W78I052DFG is an 8-bit 8051-family microcontroller with 8KB Flash, a 40MHz maximum clock, a 2.4V to 5.5V operating-voltage range, and a 44-pin BQFP package. The device operates from -40°C to 85°C and is identified as a Pb-free 51-series microcontroller, making it suitable for compact embedded control, industrial interface, security, and human-interface applications that benefit from an established 8051 instruction set. An 8051 microcontroller is an 8-bit embedded-processing component within the broader microcontroller and semiconductor hierarchy. It integrates program memory, data memory, digital I/O, timers, serial communication functions, and interrupt control into one package. Compared with larger 32-bit microcontrollers, the W78I052DFG focuses on deterministic control of digital systems with modest flash requirements, lower implementation complexity, and a broad base of compatible development tools and peripherals. The verified key characteristics are 8KB Flash, 40MHz operation, 2.4V-to-5.5V supply voltage, 256 bytes of RAM, and a 44-pin BQFP package. These values position the device for embedded products that require more general-purpose firmware storage than a very small 8-bit controller while retaining the cost and simplicity associated with the 8051 architecture. The 40MHz clock rating provides additional execution headroom for protocol handling and multi-task control. Within the Nuvoton W78 8-bit product family, the W78E052D is a closely related 8051 MCU described as configurable and pin-compatible with traditional 12T 8051 devices. Its documented operating range is also 2.4V to 5.5V at -40°C to 85°C. Available family packages include PQFP-44 and other form factors, so the DFG package suffix and footprint must be checked carefully before treating a related W78E052D ordering code as a board-level replacement. Typical application directions include security and alarm controllers, barcode-reader interfaces, keyboard and telephone user-interface modules, KVM equipment, and compact industrial-control panels. These systems benefit from the MCU's 8KB Flash, 256-byte RAM, multiple I/O pins, and ability to operate across a voltage range compatible with 5V-oriented embedded logic. PCB design should preserve the exact PQFP-44/BQFP-44 footprint, pin assignment, oscillator requirements, reset behavior, and decoupling requirements from the applicable Nuvoton datasheet. Because the supplied search data does not expose the complete pin table or confirmed replacement matrix, engineers should verify pin-level continuity and peripheral multiplexing before production substitution. This page consolidates the verified distributor specifications, package information, pricing evidence, related-family references, and practical engineering caveats. It also distinguishes confirmed drop-in candidates from family-level options that still require schematic, footprint, clock, and peripheral compatibility checks.

询价 联系我们
W78I052DPG - 8-Bit 40MHz 8KB Flash MCU | Nuvoton
W78I052DPG

W78I052DPG - 8-Bit 40MHz 8KB Flash MCU | Nuvoton

Nuvoton Technology Corporation W78I052DPG is an 8-bit W78 8052-compatible microcontroller with 40 MHz maximum operating frequency, 8 KB of embedded Flash memory, and a 44-pin PLCC package. Its specified operating-voltage range is 2.4 V to 5.5 V, while distributor listings identify it as a Pb-free device rated for -40 °C to +85 °C. The combination of an 8-bit CPU, Flash program memory, and a compact leaded-chip carrier package makes the device suitable for embedded control products that require deterministic 8051-family firmware compatibility. An 8052-compatible microcontroller is an embedded processing component built around the 8051 instruction-set architecture. Within the product hierarchy, this device belongs to the microcontroller category and, more specifically, to the 8-bit MCU family. It executes embedded control firmware rather than providing only analog or digital signal-conditioning functions. Its PLCC-44 package exposes the device's peripheral, interrupt, reset, clock, and I/O connections through 44 leads for board-level integration. The verified W78I052DPG specifications identify an 8 KB Flash organization, a maximum clock rate of 40 MHz, a 2.4 V to 5.5 V supply range, and an industrial temperature span of -40 °C to +85 °C. The 8 KB Flash capacity allows an embedded product to retain its application program and configuration data without an external program-memory device. The 40 MHz clock rating supports time-sensitive tasks where an 8-bit architecture is sufficient, although available memory and peripheral details must be confirmed against the manufacturer documentation before final design release. W78I052DPG is associated with the Nuvoton W78 family and the 8052 microcontroller class. At 8 KB of program storage, it is intended for compact control logic rather than connectivity-heavy gateways, high-resolution graphical systems, or applications requiring extensive code libraries. Firmware developers should account for interrupt latency, stack depth, code size, and peripheral configuration when estimating whether 8 KB is sufficient. Clock-dependent timing must be calculated against the actual operating frequency rather than assuming the maximum 40 MHz rating applies throughout the operating range. Typical uses include industrial control modules, appliance controllers, building equipment, sensor-conditioning interfaces, and compact embedded automation products. In these systems, the MCU can coordinate inputs, update actuators, execute control routines, and supervise power or communication functions. Its -40 °C to +85 °C rating supports equipment intended for industrial environmental conditions, while the 2.4 V to 5.5 V range permits integration with common embedded supply systems. Exact timer, serial-interface, and I/O capabilities require confirmation from the manufacturer datasheet. The principal design consideration is to validate the complete pinout, clock limits, peripheral mix, and memory map against the official datasheet before laying out a replacement PCB. A PLCC-44 footprint cannot be assumed to be interchangeable with a QFP-44 footprint because lead pitch, pad geometry, and pin numbering can differ. Decoupling, reset circuitry, clock stability, programming access, and exposed-ground requirements should likewise follow the manufacturer's recommended layout rather than generic 8051 conventions. This product record combines the exact distributor-listed 8 KB Flash, 40 MHz, voltage, temperature, and package details with sourced availability information, transparent missing-data markers, and package-focused alternative analysis. It is intended to support engineering selection and sourcing without presenting unverified peripheral specifications, fabricated pin assignments, or unsupported drop-in claims.

询价 联系我们
W78I054DDG - 8-Bit 40MHz 8051 MCU | Nuvoton Technology
W78I054DDG

W78I054DDG - 8-Bit 40MHz 8051 MCU | Nuvoton Technology

The Nuvoton Technology Corporation W78I054DDG is an 8-bit 8051-compatible microcontroller operating at up to 40 MHz, supplied in a 40-pin DIP package. The verified distributor listings identify a 2.4 V to 5.5 V operating range, Pb-free construction, and an operating temperature range of -40°C to 85°C. Flash-memory listings conflict between 16 KB and 32 KB, so the memory capacity should be confirmed against the applicable datasheet and product revision before design release. An 8051-compatible microcontroller is a type of embedded microcontroller, also called an MCU, within the broader semiconductor and embedded-processing hierarchy. These devices combine a CPU core, program memory, data memory, serial interfaces, timers, and I/O ports in one integrated circuit. They are commonly used where deterministic control, compact firmware, low component count, and direct access to mixed-signal and communication peripherals are more important than the processing power of a modern 32-bit MCU. The W78I054DDG's headline characteristics are its 8-bit architecture, 40 MHz maximum operating frequency, 2.4 V to 5.5 V supply range, and DIP-40 package. The through-hole package supports prototyping, legacy controller upgrades, industrial control equipment, and educational projects where socketed parts, reworkability, and visual inspection are useful. Pb-free construction is explicitly stated by the Mouser product listing, while the available snippets do not independently establish every environmental-compliance status. The verified W78I054 datasheet material describes the broader W78 family in 6T and 12T 8051-compatible configurations, with traditional 8051 pin compatibility. At the system level, the microcontroller can manage digital inputs, outputs, timers, serial data, and application-specific control functions without requiring separate logic devices. Its 40 MHz operating point provides substantially more execution headroom than the original Intel-era 8051 architecture while retaining software compatibility with 8051 instruction-set conventions. Typical uses include industrial keypad and user-interface controllers, security and alarm panels, barcode-reader interfaces, keyboard phones, KVM equipment, embedded instrumentation, and compact automation controllers. DIP-40 construction is especially suitable for breadboards, legacy boards, prototypes, and low-to-medium-volume products where through-hole assembly and socket compatibility are practical requirements. Designers should verify the exact pin assignments, memory map, peripheral configuration, reset requirements, oscillator options, and absolute maximum ratings in the manufacturer datasheet before layout or firmware deployment. Confirm the flash capacity as well because the distributor snippets report both 16 KB and 32 KB. The 2.4 V to 5.5 V range also requires attention to logic-level compatibility, decoupling, and any peripheral supply constraints. This page consolidates verified distributor pricing, package information, operating limits, and drop-in-family options with practical selection guidance. It also distinguishes confirmed W78I054DDG data from unresolved memory-capacity and pin-level details so engineers can make an evidence-based sourcing decision without treating distributor snippets as a complete datasheet.

询价 联系我们
W78I054DFG - 8-Bit 40MHz 8052 MCU | Nuvoton
W78I054DFG

W78I054DFG - 8-Bit 40MHz 8052 MCU | Nuvoton

Nuvoton Technology Corporation W78I054DFG is an 8-bit W78-series microcontroller based on the 8052 architecture, operating at up to 40 MHz with 16 KB of flash memory in a 44-pin PQFP package. Its stated operating-voltage range is 2.4 V to 5.5 V, and distributor listings identify the device as Pb-free with an operating temperature range of -40°C to +85°C. The reported 256-byte memory figure and 8-bit processing architecture place it in the classic 8051/8052 control category. An 8-bit 8052-compatible microcontroller is a semiconductor that combines a small CPU core, program flash, data memory, timers, serial interfaces, and I/O in one integrated device. In the product hierarchy, the W78I054DFG is a microcontroller, or MCU, within integrated circuits and embedded processing. It is intended for compact control systems where 8-bit computation, deterministic peripheral access, and a 5 V-class supply are more useful than high bandwidth or 32-bit processing. Key features visible in the verified distributor data include a 40 MHz maximum clock, 16 KB flash memory, 256 bytes of memory, 2.4 V to 5.5 V operation, and a 44-pin PQFP package. Pb-free construction is also stated. These characteristics make the device suitable for industrial control, appliance control, instrumentation interfaces, and legacy-compatible embedded products. Conflicting distributor snippets report either 16 KB or 32 KB flash, so engineers should confirm the density and memory map against the exact Nuvoton datasheet before production release. The W78-series architecture follows the established 8052 instruction-set framework while providing a modern integrated implementation in the W78I054DFG. At 40 MHz, the MCU can service multiple timers, serial communication tasks, and discrete I/O operations within one compact device. Its 44-pin PQFP format provides substantially more I/O than an 8-pin package, supporting applications that require multiple digital inputs, outputs, interrupt signals, and communication interfaces. Typical application areas include industrial machine controllers, measurement instruments, temperature-control panels, serial data collectors, programmable logic controllers, and compact appliance controllers. In these systems, the MCU can execute a control loop, scan inputs, drive outputs, communicate with sensors, and enforce timing using its integrated peripherals. The 2.4 V to 5.5 V range supports 3.3 V and 5 V system rails when peripheral levels and timing requirements are compatible. Designers should confirm memory size, pin multiplexing, clock configuration, peripheral availability, and electrical limits directly from the manufacturer datasheet before layout is frozen. A 44-pin PQFP requires adequate board area, fine-pitch assembly capability, and careful decoupling. Firmware migration should also account for peripheral differences between the original W78I054 and any replacement candidate rather than relying only on matching package names.

询价 联系我们