Integrated Circuits

W25X40CLZPIG-TR

W25X40CLZPIG-TR - 4Mbit SPI NOR Flash 104MHz 8-WSON | Winbond

The Winbond W25X40CLZPIG-TR is a 4 Mbit (512 Kbit x 8) serial NOR Flash memory device with SPI and Dual-SPI bus interface, operating at up to 104 MHz clock frequency in an 8-pin WSON (6x5 mm) package with exposed pad. It supports 2.5V/3.3V operating voltage and offers 4 KB uniform sector architecture with hardware and software write protection. A serial NOR flash is a non-volatile memory that stores data persistently and communicates over a low pin-count SPI bus. The W25X40 belongs to the spiFlash family, a category of small-footprint flash memories widely used for boot code, firmware, and configuration storage in embedded systems. Compared to parallel NOR flash, spiFlash devices trade raw bandwidth for fewer pins (4-8 vs. 32+), enabling compact PCB layouts in cost-sensitive designs. Key features of the W25X40CLZPIG-TR include 104 MHz maximum SPI clock, 8 ns access time, page program (up to 256 bytes per command), 4 KB sector erase granularity, 32 KB and 64 KB block erase options, hardware write-protect pin, software write-protection via status register, JEDEC standard manufacturer and device ID read, and an operating temperature range of -40C to +85C. The 8-WSON package with exposed pad provides a small footprint (6 mm x 5 mm) and good thermal dissipation. The W25X40CLZPIG-TR uses a single 2.5V to 3.3V supply and is fully static, requiring no external clock. Internally the device implements a state-machine-based command interpreter that decodes instruction opcodes (Read, Page Program, Sector/Block Erase, Read Status, etc.) issued over the SPI bus. Dual-SPI mode doubles throughput by using two data lines for read operations, useful for XIP (execute-in-place) boot from flash. Typical applications include router and home gateway firmware storage, set-top box boot loaders, IoT device firmware, industrial sensor data logging, and Bluetooth/Wi-Fi module configuration storage. It is frequently paired with low-cost MCUs that lack internal flash of sufficient capacity. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the VCC pin and connect the exposed pad to a solid ground plane for thermal relief. The /WP and /HOLD pins should be tied to VCC via pull-ups if unused, to prevent accidental write protection or bus stalls during firmware updates. This page consolidates distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes beyond what the Winbond datasheet alone provides, helping engineers select and source the right SPI flash for cost-sensitive embedded designs.

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W29EE011P-90

W29EE011P-90 - 1Mb 5V Parallel Flash, 90ns, 32-PLCC | Winbond

The Winbond W29EE011P-90 is a 1-megabit (128K x 8) CMOS parallel flash memory with 90 ns access time, organized as 128K bytes and packaged in a 32-pin PLCC. It operates from a single 5V supply and supports in-system program and erase operations without requiring a 12V VPP. A flash memory is a non-volatile storage technology that retains data when power is removed and supports electrical erase and program cycles in circuit. The W29EE011P-90 sits within the memory IC hierarchy as a parallel NOR flash, distinct from serial SPI flash (fewer pins, lower pin count) and NAND flash (higher density, page/block oriented). Parallel NOR flash is the legacy choice for code storage in 8-bit and 16-bit microcontrollers, EPROM replacement, and firmware boot ROMs where byte-level random access and simple bus interface are required. The W29EE011P-90 features 90 ns maximum access time, sector/chip erase capability, and CMOS low-power operation. It is designed as a drop-in replacement for legacy 5V EPROMs and standard 1-Mbit flash devices. The 32-PLCC package provides a JEDEC-standard pinout compatible with the industry 1-Mbit parallel flash footprint, simplifying board-level migration from older AMD/Atmel/ST 28F001 or 29EE011 sockets. Typical applications include embedded firmware storage for industrial controllers, legacy 8051/68HC11/MCS-96 system boot memory, BIOS and firmware update banks, point-of-sale terminals, and industrial PLC code storage. The 90 ns access time supports microcontrollers running at up to approximately 8 MHz without wait states. When designing with this part, note that the 32-PLCC package requires a PLCC socket or careful reflow profile for surface-mount assembly. Verify the device's command set (byte programming, sector erase, chip erase) against your firmware's flash algorithm before substitution. The part is suitable for 5V-only systems; it does not support 3.3V operation.

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W29N01HVBINF

W29N01HVBINF - 1Gbit 3V SLC NAND Flash 63-VFBGA | Winbond

The Winbond W29N01HVBINF is a 1 Gbit (128 M x 8) Single-Level Cell (SLC) NAND Flash memory organized as 1024 blocks of 64 KB each, supplied in a compact 63-ball VFBGA (9 mm x 11 mm) package. It operates from a single 3.0 V power supply (2.7 V to 3.6 V) and provides asynchronous x8 parallel I/O with typical page-read access of 25 ns, making it well suited for embedded code and data storage where reliability and endurance matter more than raw throughput. NAND Flash is a non-volatile memory technology that stores bits as charge on a floating-gate MOSFET cell. SLC NAND stores one bit per cell, which delivers 10x the endurance and 10x the data retention of MLC or TLC NAND at the cost of lower density per die. Within the storage taxonomy, NAND Flash sits below NOR Flash for code execution and below DRAM for volatile working memory, but above raw EEPROM in density-per-area. The 1 Gbit SLC class targets boot-loaders, firmware images, and transaction logs in set-top boot boxes, industrial HMIs, and IoT gateways where predictable write performance and 100 K P/E cycles are non-negotiable. Key features of the W29N01HVBINF include ONFI 1.0 compatibility, an internal 4-bit ECC engine that corrects up to 4 bit errors per 528-byte sector, a 2112-byte page size (2048 data + 64 spare), a block erase time of 2 ms typical, and a page program time of 250 us typical. The chip supports two ground pins for noise isolation, a hardware write protect pin, and a HOLD# pin that allows the host to pause operations mid-bus cycle without de-asserting chip enable. Architecturally the W29N01HVBINF uses a charge-trap-compatible floating-gate cell array with on-chip charge pumps generating the high voltages required for program and erase operations, so the host only supplies 3.3 V. The integrated ECC reduces host CPU load and corrects soft errors that occur naturally during the operational lifetime of the NAND array, which is critical because raw NAND bit error rate (RBER) climbs as the part approaches its end-of-life P/E count. Typical applications include set-top box firmware storage, industrial IoT gateways, eMMC boot, point-of-sale terminals, and automotive infotainment reference data. Designers choose this Winbond SLC when they need ONFI-compliant timing for an existing host controller, or when they need a second-source drop-in part for a Samsung or Toshiba SLC die. A key design consideration is that the W29N01HVBINF requires 4-bit ECC for every read of 528 bytes; disabling ECC on the host side will reduce endurance and reliability significantly, and is not recommended by the manufacturer. Always sequence WP#, HOLD#, and CE# transitions per the AC timing diagram in section 4 of the manufacturer datasheet. This page synthesizes distributor pricing, ONFI-compatible drop-in equivalents, and practical hardware-design notes not found in the manufacturer datasheet alone.

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W29N01HVBINF-TR

W29N01HVBINF-TR - 1Gb 3V SLC NAND Flash, 63-VFBGA | Winbond

The Winbond W29N01HVBINF-TR is a 1 Gbit (128 MB) Single-Level Cell (SLC) NAND Flash memory organized as an 8-bit multiplexed I/O bus and housed in a 63-ball VFBGA (9x11 mm) package. It operates from a 2.7V to 3.6V single supply with a typical 20 ns random-access time and ONFI 1.0 compliance. The device uses a 2048 + 64 byte page architecture and supports the standard NAND command set including program, read, erase, and copy-back operations. A NAND Flash memory is a non-volatile storage technology that retains data without power by storing charge on floating-gate transistors. SLC NAND stores one bit per cell, delivering the highest endurance (typically 100k P/E cycles), fastest write speeds, and longest data retention among NAND types - making it the preferred choice for code storage, boot media, and industrial data logging where MLC/TLC reliability would be inadequate. The W29N-HV family sits in the ONFI 1.0 standard ecosystem (NAND Flash -> non-volatile memory -> memory IC -> semiconductor), allowing seamless software reuse across vendors. Key features include a 1 Gbit density in the smallest standard NAND footprint, hardware WP# (Write Protect) and R/B# (Ready/Busy) status pins, 4-bit ECC requirement per 528 bytes, and an extended operating temperature range suitable for industrial applications. The device uses a 3V VCC for both the core and I/O, simplifying power-tree design by removing the 1.8V requirement common to higher-density parts. Typical applications include embedded Linux/Android boot storage on routers, set-top boxes, and IoT gateways; firmware and asset-log retention in industrial control and metering equipment; data logging in automotive infotainment and telematics modules; and code shadowing from NOR/ROM to faster NAND in consumer electronics. The 63-VFBGA package is footprint-compatible with the wider Winbond W29N family, enabling PCB reuse across 1 Gb to higher densities. When designing with this part, ensure the host controller or SoC implements the ONFI 1.0 software driver and a BCH or Hamming ECC engine capable of 4-bit correction per 528-byte sector. For long-term reliability, apply wear-leveling at the file-system (e.g., UBI/YAFFS/JFFS2) or FTL layer, because raw NAND blocks wear out at the rated P/E cycle count. This page synthesizes Winbond datasheet specifications, current distributor pricing, drop-in alternatives, and practical design notes not consolidated on any single manufacturer or distributor page. The W29N01HVBINF-TR is halogen-free and RoHS compliant per the Winbond product page. The 'TR' suffix denotes Tape and Reel packaging suitable for high-volume SMT assembly.

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W5100

W5100 - 10/100 Ethernet Controller with TCP/IP | WIZnet

WIZnet W5100 is a single-chip Internet-enabled 10/100 Ethernet controller for embedded systems, integrating TCP/IP, MAC, and PHY functions in an 80-LQFP 10 x 10 mm package. The controller supports 10/100 Base-T/TX Ethernet connectivity through an SPI interface, reducing the need for a host processor to manage low-level network stacks. An Ethernet controller is an interface IC that connects an embedded processor to a physical network. In the W5100, the MAC, TCP/IP hardware, and 10/100 PHY are integrated into one device, allowing the host MCU or CPU to communicate through SPI while the controller handles Ethernet framing and protocol processing. The verified distributor listing identifies W5100 as a 10/100 Base-T/TX Ethernet controller with an SPI interface and an 80-LQFP package. The manufacturer datasheet describes the device as a full-featured, single-chip Internet-enabled controller designed for embedded applications where integration stability, performance, area, and system cost control are important. W5100 is suited to industrial embedded equipment, control systems, instrumentation, building automation, and other Ethernet-connected products. Its integrated architecture can simplify hardware design by combining the Ethernet MAC and PHY with hardware-assisted TCP/IP functions, while the SPI host interface keeps the external processor interface compact. The 10/100 Ethernet capability makes W5100 appropriate for legacy and cost-sensitive networks operating at 10 or 100 Mbit/s. The exact PHY, electrical, timing, temperature, memory, and SPI operating details should be confirmed directly in the manufacturer datasheet before final schematic, layout, and qualification decisions. The W5100 is not a power semiconductor, so a safe operating area is not applicable. Proper implementation requires attention to Ethernet magnetics, RJ45 integration, PCB signal integrity, power sequencing, decoupling, and the exact pin assignments shown in the official documentation. This page consolidates the verified product description, distributor package information, datasheet links, and engineering-oriented application guidance.

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W5500

W5500 - Hardwired TCP/IP Ethernet Controller SPI | WIZnet

The WIZnet W5500 is a hardwired TCP/IP embedded Ethernet controller that integrates the TCP/IP stack, 10/100 Ethernet MAC, and PHY in a single chip, communicating to a host MCU over an SPI bus at up to 80 MHz. It provides 8 simultaneous sockets with 32 KB of internal TX/RX buffer memory and is housed in a 48-pin LQFP (7x7 mm) package. An Ethernet controller (also called a network controller or NIC controller) is a semiconductor device that offloads the low-level networking functions - framing, MAC addressing, PHY transceiver signaling, and protocol handling - from the host microcontroller. Hardwired TCP/IP controllers go further by implementing the TCP, UDP, IPv4, ICMP, PPPoE, ARP, and IGMP protocols in dedicated silicon rather than firmware. Within the broader taxonomy, the W5500 sits at: Ethernet controller -> network controller -> communication IC -> semiconductor. Compared to a microcontroller running an LWIP software stack, a hardwired controller delivers deterministic latency, low MCU overhead, and a smaller code footprint, but lacks the flexibility of full-protocol software stacks. Key features include 10/100 Base-TX auto-negotiation, full/half-duplex operation, 8 independent socket buffers, a wake-on-LAN (WoL) pin for remote wake scenarios, and integrated 802.3az energy-efficient Ethernet support. The SPI interface runs from 0 to 80 MHz in variable-length mode and supports Mode 0 / Mode 3, allowing direct connection to most ARM Cortex-M, ESP32, AVR, and PIC hosts without glue logic. The W5500's architecture is built around a hardwired protocol engine and dedicated socket memory blocks. Each of the 8 sockets has a Tx buffer and Rx buffer routed through an internal DMA-like engine, so the host MCU does not have to manage TCP state machines. The embedded PHY supports HP Auto-MDIX, eliminating the need for crossover cables. Compared to the legacy W5100 (80-pin), the W5500 reduces pin count to 48 and adds SPI efficiency improvements, while W5100S retains the 80-pin footprint for drop-in W5100 upgrades. Typical applications include IoT sensor nodes, industrial Ethernet PLCs, smart-home gateways, IP-camera control planes, and Arduino/MCU Ethernet shields. The 32 KB buffer is sufficient for most MQTT/CoAP/HTTP payloads without external memory, and the SPI bus allows the part to be wired directly to microcontrollers that lack integrated Ethernet MAC/PHY. Design consideration: because the W5500 integrates the PHY, the board must route the MDI differential signals as a 100-ohm differential pair and provide a 1:1 center-tap magnetics module. Decouple both 3.3 V analog and digital rails at the chip pins with 0.1 uF and 10 uF ceramics; share ground with the host MCU through a single stitch. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical hardware-design notes not consolidated in the manufacturer datasheet.

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W55RP20

W55RP20 - RP2040+W5500 Ethernet SiP MCU | WIZnet

The WIZnet W55RP20 is a System-in-Package (SiP) ioMCU that integrates the Raspberry Pi RP2040 dual-core Arm Cortex-M0+ microcontroller running at 133 MHz with the W5500 hardware TCP/IP Ethernet controller, in a 68-pin VFQFN exposed-pad package. It combines 2 MByte of on-chip flash memory and 264 kB of on-chip SRAM organized in six independent banks with a full hardwired TCP/IP stack and a 12-channel DMA controller. A System-in-Package device stacks or side-by-side mounts two dies within a single molded package, so the W55RP20 functions electrically as one microcontroller with built-in Ethernet, eliminating the two-chip RP2040-plus-W5500 solution that previously required separate routing, crystals, and power domains. In the product hierarchy it sits as: ioMCU -> communications controller microcontroller -> Ethernet microcontroller -> IoT connectivity IC. Key features include the dual Cortex-M0+ cores at 133 MHz, 2 MB flash for code storage, 264 kB SRAM in six independent banks, and the W5500 subsystem with a hardwired TCP/IP stack supporting 8 hardware sockets, which offloads protocol processing entirely from the CPU. A 12-channel DMA controller supports memory-to-peripheral, peripheral-to-memory, and memory-to-memory transfers, each channel with its own control and status registers, letting the processor switch to other tasks or low-power states during large data transfers. The W5500 die provides a hardware TCP/IP stack implementing MAC and PHY functionality for 10/100 Mbps Ethernet, so networking is deterministic and does not consume MCU cycles for protocol handling. This architecture suits applications where wire-speed throughput and low jitter matter more than a large software network stack. Typical applications include industrial IoT gateways, networked sensor nodes, smart-building controllers, and Ethernet-enabled embedded systems where developers want Raspberry Pi Pico-class processing plus native wired networking in one chip. Design consideration: as a SiP, thermal dissipation is combined from both dies; verify total power budget and provide adequate ground-plane copper under the exposed pad for heat spreading and signal return. This page synthesizes distributor pricing, availability, evaluation-board references, and practical design notes not consolidated in the manufacturer datasheet.

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W55RP20-S2E

W55RP20-S2E - Serial-to-Ethernet MCU, 2MB Flash | WIZnet

The WIZnet W55RP20-S2E is a pre-programmed serial-to-Ethernet communications controller microcontroller IC built on the W55RP20 System-in-Package, delivering a dual ARM Cortex-M0+ core at 133 MHz, 2MB on-chip Flash, and a hardwired 10/100 Mbps Ethernet TCP/IP controller in a 68-pin VFQFN package with exposed pad. Each unit ships with WIZnet serial-to-Ethernet (S2E) firmware and a unique MAC address from the WIZnet OUI block. An application-specific communications microcontroller, or ioMCU, is a device that combines a general-purpose MCU core with dedicated network hardware. In the W55RP20-S2E, the integration hierarchy runs: serial-to-Ethernet chip -> communications controller MCU -> Ethernet IC -> power/networking semiconductor. Unlike software TCP/IP stacks that consume MCU cycles, the integrated W5500-style hardwired TCP/IP core offloads protocol processing in silicon. Key features include the SiP integration of Raspberry Pi's RP2040 microcontroller and WIZnet's W5500 Ethernet controller, 264kB on-chip SRAM organized in six independent banks, a 12-channel DMA controller supporting memory-to-peripheral, peripheral-to-memory, and memory-to-memory transfers, and a USB 2.0 full-speed (12 Mbps) controller usable as host or device. The serial-to-Ethernet firmware supports serial speeds up to 921,600 bps, letting any UART-equipped device gain Ethernet connectivity without protocol development. The dual Cortex-M0+ architecture lets one core handle application logic while the other manages network I/O, and the hardwired TCP/IP stack supports 8 independent sockets with minimal latency. Because the TCP/IP, MAC, and PHY functions are hardened in silicon, software stack bugs and CPU load from protocol handling are essentially eliminated. Typical applications include adding Ethernet to legacy industrial equipment with UART ports, IoT smart-device connectivity, and networked sensor or control nodes. The pre-programmed firmware approach removes firmware certification and development risk for serial-to-Ethernet designs. Design consideration: since this is a pre-programmed part, use the bare W55RP20 if custom firmware is required; the S2E variant is optimized for UART-to-Ethernet bridging with minimal development effort. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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W6300-L

W6300-L - IPv4/IPv6 Hardwired TCP/IP Ethernet Chip | WIZnet

The WIZnet W6300-L is a hardwired TCP/IP Ethernet controller chip that integrates a dual IPv4/IPv6 protocol stack in hardware, delivering 10/100 Mbps Ethernet performance for embedded systems in an LQFP-48-EP (7x7 mm) surface-mount package. A hardwired TCP/IP controller is a type of offload engine (TOE - TCP/IP Offload Engine) in the broader hierarchy of network interface ICs. Unlike software stacks running on a host MCU, a hardware protocol stack offloads TCP, UDP, ICMP, ARP, and related processing from the main processor, so even a small 8-bit MCU can implement reliable network connectivity with minimal firmware overhead and deterministic timing. This makes the category essential for industrial automation, IoT gateways, and embedded networking nodes. Key features of the W6300-L include the dual IPv4/v6 hardware stack, which sets it apart from WIZnet's earlier IPv4-only devices; multiple independent hardware sockets for simultaneous connections; a high-speed host interface for fast data throughput; and low-power operation modes for energy-sensitive designs. According to the WIZnet product page, the chip combines high-speed Ethernet performance with advanced power efficiency. Technically, the W6300 continues WIZnet's well-established W-series architecture: socket registers, internal TX/RX buffers, PHY, and MAC are all integrated, so designers need only an external RJ45 magnetics jack and a host MCU to complete the network node. The hardware stack eliminates porting, memory-footprint, and real-time concerns associated with software TCP/IP stacks such as lwIP. Typical applications include industrial automation and factory networking, IoT gateways bridging field devices to cloud backends, and embedded equipment requiring IPv6 readiness for modern network infrastructure. For design consideration, verify host-interface timing against your MCU's SPI or bus clock, and follow the WIZnet reference schematic for magnetics, crystal, and decoupling placement to guarantee PHY signal integrity. This page synthesizes distributor pricing, drop-in alternatives, design notes, and AEO-optimized FAQs not found in the manufacturer datasheet.

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W634GU6RB-09

W634GU6RB-09 - 4Gb DDR3L SDRAM 1066MHz | Winbond

The W634GU6RB-09 is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 512M x 8 bits. It operates at a clock frequency of 1.067 GHz (1066 MHz) with a data rate of 2133 Mbps per pin, and features a parallel interface with a 20 ns access time. The device is housed in a 96-ball VFBGA package measuring 7.5x13 mm, designed for surface mount assembly. DDR3L SDRAM (Double Data Rate 3 Low Voltage Synchronous Dynamic Random-Access Memory) is a type of volatile memory that operates at a lower supply voltage of 1.35V, reducing power consumption compared to standard DDR3 (1.5V). It is part of the DDR3 family, which uses double data rate signaling to transfer data on both edges of the clock, and is widely used in computing, networking, and embedded systems for high-bandwidth data storage and processing. Key features include a 4Gbit density, 1.35V supply voltage, 1066 MHz clock speed, and a 96-ball VFBGA package. The low voltage operation makes it ideal for power-sensitive applications, while the high speed supports demanding workloads. The device is RoHS compliant and halogen-free, meeting modern environmental standards. Technically, the W634GU6RB-09 uses an 8n-prefetch architecture typical of DDR3L, enabling high burst lengths and efficient data transfer. The 20 ns access time indicates the row-to-column delay, and the 1.067 GHz clock allows data rates up to 2133 Mbps. The VFBGA package offers excellent thermal and electrical performance, with a compact footprint suitable for space-constrained designs. Typical applications include high-performance computing, networking equipment, embedded systems, and industrial automation. The low power consumption and high speed make it suitable for servers, routers, and IoT gateways where memory bandwidth and efficiency are critical. When designing with this device, ensure proper decoupling capacitors near the power pins and follow the layout guidelines in the datasheet to maintain signal integrity at high frequencies. The 1.35V supply must be regulated accurately to avoid data corruption.

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W634GU6RB-09TR

W634GU6RB-09TR - 4Gb DDR3L SDRAM 1.35V | Winbond

The W634GU6RB-09TR is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 256M x 16 bits. It operates at a clock frequency of 1.067 GHz (DDR3L-2133) with a CAS latency of 20 ns, and is supplied in a 96-ball VFBGA package measuring 7.5x13 mm. This device is designed for low-voltage operation at 1.35V, reducing power consumption by approximately 15% compared to standard DDR3 at 1.5V, making it ideal for power-sensitive applications. DDR3L SDRAM (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory that transfers data on both edges of the clock signal, effectively doubling the data rate. It operates at a lower voltage (1.35V) than standard DDR3 (1.5V), which reduces power consumption and heat generation, making it suitable for mobile and embedded systems. DDR3L is part of the DDR SDRAM family, which includes DDR, DDR2, DDR3, and DDR4, each offering higher speeds and lower voltages. Key features of the W634GU6RB-09TR include a parallel interface with a 16-bit data bus, a burst length of 8, and support for on-die termination (ODT) and programmable CAS latency. It also features auto-refresh and self-refresh modes to maintain data integrity with minimal power. The device is RoHS compliant and halogen-free, meeting environmental standards for modern electronics. Technically, the W634GU6RB-09TR uses a 96-ball VFBGA package with a 0.8 mm ball pitch, providing excellent thermal and electrical performance. The device supports a wide operating temperature range from 0°C to 95°C (case temperature), making it suitable for industrial applications. It also features a programmable output driver impedance and supports DLL (Delay-Locked Loop) for precise timing. Typical applications include embedded systems, networking equipment, industrial automation, and consumer electronics such as set-top boxes and routers. Its low voltage and high density make it ideal for designs requiring large memory capacity with limited power budgets. When designing with this device, ensure proper decoupling capacitors are placed near the power pins to minimize noise. Also, follow the PCB layout guidelines in the datasheet to maintain signal integrity at high speeds.

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W634GU6RB-11

W634GU6RB-11 - 4Gb DDR3L SDRAM 933MHz | Winbond

The W634GU6RB-11 is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 256M x 16 bits. It operates at a clock frequency of 933 MHz (DDR3L-1866) with a CAS latency of 20 ns, and is supplied in a 96-ball VFBGA (7.5x13 mm) package. This device is designed for low-power applications, operating from a 1.35V supply (1.283V to 1.45V range), and supports parallel interface with a data rate of 1866 MT/s. DDR3L (Double Data Rate 3 Low Voltage) SDRAM is a type of synchronous dynamic random-access memory that transfers data on both edges of the clock signal, effectively doubling the data rate. It is a low-voltage variant of DDR3, operating at 1.35V instead of the standard 1.5V, reducing power consumption by about 20% compared to standard DDR3. DDR3L is part of the DDR SDRAM family, which includes DDR, DDR2, DDR3, and DDR4, and is widely used in computing, networking, and embedded systems where high bandwidth and low power are critical. Key features of the W634GU6RB-11 include auto self-refresh, auto precharge, data mask, write leveling, ZQ calibration, asynchronous reset, and dynamic on-chip termination (ODT). These features enhance signal integrity and simplify system design. The device supports a temperature range of -40°C to +95°C, making it suitable for industrial applications. It is RoHS compliant and halogen-free, aligning with environmental standards. Technically, the W634GU6RB-11 utilizes a 96-ball VFBGA package with a 7.5x13 mm footprint, offering a compact solution for space-constrained designs. The 20 ns CAS latency ensures fast access times, while the 933 MHz clock speed provides high bandwidth for data-intensive tasks. The device includes on-die termination (ODT) to improve signal quality on the memory bus, and supports write leveling for improved timing margins in multi-rank configurations. Typical applications include networking equipment (routers, switches), industrial computing, embedded systems, and consumer electronics such as set-top boxes and smart TVs. Its low voltage and high density make it ideal for power-sensitive designs where performance and efficiency are balanced. When designing with this device, ensure proper decoupling capacitors are placed near the VDD and VDDQ pins to minimize noise. Also, follow the JEDEC DDR3L layout guidelines for signal integrity, especially for high-speed signals. The device supports a 1.35V supply, so verify that the power management IC provides a stable 1.35V rail.

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W634GU6RB-11TR

W634GU6RB-11TR - 4Gb DDR3L SDRAM 933MHz | Winbond

The W634GU6RB-11TR is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 256M x 16 bits. It operates at a clock frequency of 933 MHz (DDR3L-1866) with a CAS latency of 13, and features a parallel interface with a 20 ns access time. The device is housed in a compact 96-ball VFBGA (7.5x13 mm) package, making it suitable for space-constrained applications requiring high memory density. DDR3L (Double Data Rate 3 Low Voltage) SDRAM is a type of synchronous dynamic random-access memory that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption by up to 20% while maintaining similar performance. It is part of the memory hierarchy in computing systems, serving as the main working memory for processors, and is widely used in laptops, embedded systems, networking equipment, and industrial applications. Key features of the W634GU6RB-11TR include support for 1.35V operation (with 1.5V compatibility), auto self-refresh, auto precharge, data mask, write leveling, ZQ calibration, asynchronous reset, and dynamic on-chip termination (ODT). These features enhance signal integrity and simplify system design. The device is RoHS compliant and halogen-free, meeting environmental standards. Technically, the W634GU6RB-11TR uses a 96-ball VFBGA package with a 0.8mm ball pitch, providing excellent thermal and electrical performance. The 933 MHz clock rate enables data rates up to 1866 MT/s, delivering high bandwidth for demanding applications. The device supports a temperature range of -40°C to +95°C, making it suitable for industrial environments. Typical applications include embedded computing, networking routers and switches, industrial automation, and high-performance consumer electronics. Its low voltage and high density make it ideal for power-sensitive designs. When designing with this memory, ensure proper decoupling capacitors near the VDD and VDDQ pins, and follow the PCB layout guidelines in the datasheet to minimize signal integrity issues at high speeds.

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W634GU6RB-12

W634GU6RB-12 - 4Gb DDR3L SDRAM x16 933MHz | Winbond

The W634GU6RB-12 is a 4Gbit DDR3L SDRAM from Winbond Electronics, organized as 256M x 16, operating at 1.35V with a parallel interface. It is housed in a 96-ball VFBGA (7.5x13mm) package and supports DDR3L-1600 (11-11-11) speed grade at 933 MHz clock. This memory IC is designed for high-bandwidth applications requiring low power consumption and high reliability. DDR3L SDRAM is a type of double data rate synchronous dynamic random-access memory that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption by up to 20% while maintaining similar performance. It is part of the DDR3 memory family, which uses 8n-prefetch architecture and on-die termination to achieve high data rates. DDR3L is widely used in mobile, embedded, and industrial systems where power efficiency is critical. Key features include a 4Gbit density, x16 organization, 933 MHz clock speed (DDR3L-1600), 20 ns tRCD, and a 96-ball VFBGA package. The device supports industrial temperature grades: the -12I grade guarantees -40°C to 95°C case temperature, and the -12J grade guarantees -40°C to 105°C. It is RoHS compliant and halogen-free, meeting environmental standards. The W634GU6RB-12 utilizes advanced DRAM process technology, offering high-speed data transfer with low power consumption. The 8n-prefetch architecture enables burst lengths of 8, and the on-die termination (ODT) improves signal integrity. The device includes programmable CAS latency, burst length, and output drive strength, providing flexibility for system optimization. Typical applications include networking equipment, industrial automation, embedded computing, and consumer electronics such as set-top boxes and smart TVs. The low voltage and high density make it ideal for space-constrained designs requiring large memory capacity. When designing with this device, ensure proper decoupling capacitors near the VDD and VDDQ pins, and follow the PCB layout guidelines in the datasheet to minimize signal integrity issues. The device requires a 1.35V supply and a separate VDDQ supply, which should be well-regulated.

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W634GU6RB09I

W634GU6RB09I - 4Gb DDR3L SDRAM x16 1066MHz | Winbond

The W634GU6RB09I is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 256M x 16 bits. It operates at a clock frequency of 1.067 GHz (DDR3L-2133) with a CAS latency of 20 ns, and is housed in a 96-ball VFBGA (7.5x13 mm) package. This device is designed for low-voltage operation at 1.35V, making it suitable for power-sensitive applications such as mobile devices, embedded systems, and networking equipment. DDR3L (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory (SDRAM) that operates at 1.35V, reducing power consumption by about 20% compared to standard DDR3 (1.5V). It is part of the DDR3 family, which uses double data rate signaling to transfer data on both edges of the clock, achieving high bandwidth. DDR3L is widely used in laptops, servers, and industrial applications where energy efficiency is critical. Key features include a 4Gbit density, x16 data bus width, 1.067 GHz maximum clock speed, and industrial temperature range (-40°C to +95°C). The device supports burst lengths of 8 and 4, on-die termination (ODT), and programmable CAS latency. It is RoHS compliant and lead-free, meeting environmental standards. Technically, the W634GU6RB09I uses a 96-ball VFBGA package with a 0.8mm ball pitch, enabling high-density mounting on PCBs. The memory core is based on advanced DRAM process technology, providing high reliability and performance. The device includes auto-refresh and self-refresh modes for low-power standby, and supports DLL (Delay-Locked Loop) for precise timing. Typical applications include embedded computing, networking routers, industrial automation, and consumer electronics such as set-top boxes and smart TVs. Its low voltage and high density make it ideal for designs requiring large memory capacity with minimal power draw. When designing with this component, ensure proper decoupling capacitors near the power pins and follow the layout guidelines in the datasheet to minimize signal integrity issues. The device requires a 1.35V supply and a separate VDDQ for I/O, which should be regulated accurately.

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W634GU6RB09J

W634GU6RB09J - 4Gb DDR3L SDRAM x16 1066MHz | Winbond

The Winbond W634GU6RB09J is a 4Gbit DDR3L SDRAM organized as 256M x 16, operating at 1.35V with a data rate of 1066MHz (DDR3L-2133). It comes in a 96-ball VFBGA (7.5x13mm) package, offering a compact footprint for space-constrained designs. This memory IC is designed for high-bandwidth applications requiring low power consumption, making it ideal for mobile, embedded, and networking systems. DDR3L (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory (SDRAM) that operates at 1.35V, reducing power consumption by about 20% compared to standard 1.5V DDR3. It is part of the DDR3 family, which uses double data rate signaling to transfer data on both edges of the clock, achieving high throughput. DDR3L is backward-compatible with DDR3 and is widely used in laptops, servers, and industrial electronics where energy efficiency is critical. Key features include a 4Gbit density, x16 organization, 1.067 GHz clock speed, and a CAS latency of 20 ns. The device supports on-die termination (ODT), programmable CAS latency, and burst lengths of 8 and 4. It operates over a temperature range of 0°C to +95°C (case temperature) and is RoHS compliant. The 96-VFBGA package measures 7.5x13mm with a 0.8mm ball pitch, enabling high-density PCB layouts. Technically, the W634GU6RB09J uses a 30nm-class process technology, achieving low power and high speed. It features internal calibration for ZQ, write leveling, and read leveling to ensure signal integrity at high frequencies. The device supports auto-refresh and self-refresh modes, reducing standby power. Its low voltage operation and advanced power management make it suitable for battery-powered devices. Typical applications include mobile computing, networking equipment, industrial automation, and consumer electronics such as set-top boxes and smart TVs. The high density and low power make it ideal for systems requiring large memory capacity with minimal energy consumption. When designing with this component, ensure proper decoupling capacitors near the power pins and follow the layout guidelines in the datasheet to maintain signal integrity at 1066MHz. The device requires a 1.35V supply and a separate VDDQ, which should be regulated accurately.

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W634GU6RB11I

W634GU6RB11I - 4Gb DDR3L SDRAM x16 933MHz | Winbond

The W634GU6RB11I is a 4Gbit DDR3L SDRAM memory IC from Winbond Electronics, organized as 256M x 16 bits. It operates at a clock frequency of 933 MHz (DDR3L-1866) with a CAS latency of 20 ns, and is supplied in a 96-ball VFBGA package measuring 7.5 x 13 mm. This device is designed for low-voltage operation at 1.35V, reducing power consumption by approximately 15% compared to standard 1.5V DDR3, making it ideal for power-sensitive applications. DDR3L SDRAM (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory that transfers data on both edges of the clock signal, effectively doubling the data rate. It operates at a lower voltage (1.35V) than standard DDR3 (1.5V), offering improved energy efficiency. DDR3L is part of the DDR SDRAM family, which includes DDR, DDR2, DDR3, and DDR4, and is widely used in computing, networking, and embedded systems where high bandwidth and low power are critical. Key features of the W634GU6RB11I include a parallel interface with a 16-bit data bus, support for industrial temperature range (-40°C to +95°C), and compatibility with JEDEC DDR3L standards. The device offers burst lengths of 8 and 4, on-die termination (ODT), and programmable CAS latency. Its low-voltage operation and high density make it suitable for applications requiring large memory capacity with minimal power draw. The W634GU6RB11I utilizes advanced DRAM process technology, achieving high-speed data transfer while maintaining low power consumption. The 96-ball VFBGA package provides excellent thermal and electrical performance, with a compact footprint suitable for space-constrained designs. The device supports auto-refresh and self-refresh modes, ensuring data integrity with minimal power consumption during idle periods. Typical applications include networking equipment (routers, switches), industrial automation, embedded computing, and consumer electronics such as set-top boxes and smart TVs. Its industrial temperature rating makes it suitable for harsh environments, while the low-voltage operation extends battery life in portable devices. When designing with this component, ensure proper decoupling capacitors are placed near the power pins to minimize noise. The VFBGA package requires careful PCB layout to route the fine-pitch balls, and the DDR3L interface should be terminated according to JEDEC guidelines to maintain signal integrity.

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W634GU6RB11J

W634GU6RB11J - 4Gb DDR3L SDRAM x16 933MHz | Winbond

The Winbond W634GU6RB11J is a 4Gbit DDR3L SDRAM organized as 256M x 16, operating at a clock frequency of 933 MHz (DDR3L-1866) with a data rate of 1866 MT/s. It is housed in a 96-ball VFBGA package (7.5x13 mm) and operates from a 1.35V supply, making it suitable for low-power applications. The device supports parallel interface with a burst length of 8 and features a 20 ns CAS latency. DDR3L (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory (SDRAM) that operates at 1.35V, reducing power consumption by about 20% compared to standard DDR3 (1.5V). It is part of the DDR3 family, which uses double data rate signaling to transfer data on both edges of the clock, achieving high bandwidth. DDR3L is commonly used in mobile devices, embedded systems, and industrial applications where power efficiency is critical. Key features include auto self-refresh, auto precharge, data mask, write leveling, ZQ calibration, asynchronous reset, and dynamic on-chip termination (DTC). These features enhance signal integrity and simplify system design. The device supports industrial temperature range from -40°C to +95°C, making it suitable for harsh environments. It is RoHS compliant and halogen-free, aligning with environmental standards. Technically, the W634GU6RB11J uses a 96-ball VFBGA package with a 0.8mm ball pitch, providing excellent thermal and electrical performance. The memory array is organized in 8 banks, and the device supports programmable CAS latency (CL) and additive latency (AL) for flexible timing. The on-die termination (ODT) feature improves signal quality by matching impedance, reducing reflections on the data bus. Typical applications include networking equipment, industrial automation, medical devices, and embedded computing systems where high-density, low-power memory is required. The 4Gb density and x16 organization make it ideal for applications needing moderate memory capacity with a wide data bus. When designing with this device, ensure proper decoupling capacitors near the VDD and VDDQ pins to minimize power supply noise. Also, follow the JEDEC DDR3L layout guidelines for signal integrity, including controlled impedance traces and proper termination.

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W634GU6RB12I

W634GU6RB12I - 4Gb DDR3L SDRAM x16 800MHz | Winbond

The W634GU6RB12I is a 4Gbit DDR3L SDRAM organized as 256M x 16, operating at 1.35V with a data rate of 800MHz (DDR3L-1600). It is housed in a 96-ball VFBGA (7.5x13mm) package and is designed for industrial temperature range (-40°C to +95°C). This memory IC is ideal for applications requiring high-density, low-power volatile storage. DDR3L (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory (SDRAM) that operates at 1.35V, reducing power consumption by about 20% compared to standard DDR3 (1.5V). It is part of the DDR3 family, which uses double data rate signaling to transfer data on both edges of the clock, achieving high bandwidth. DDR3L is commonly used in computing, networking, and embedded systems where power efficiency is critical. Key features include a parallel interface with 800MHz clock speed, 20ns row cycle time, and support for industrial temperature grades. The device is RoHS compliant and halogen-free, meeting environmental standards. The 96-ball VFBGA package offers a compact footprint suitable for space-constrained designs. The W634GU6RB12I utilizes advanced DRAM process technology, providing reliable performance with low power consumption. It supports standard DDR3L features such as on-die termination (ODT), programmable CAS latency, and burst lengths of 8. The industrial temperature grade ensures operation in harsh environments. Typical applications include industrial automation, networking equipment, embedded computing, and automotive infotainment systems. Its high density and low power make it suitable for memory-intensive tasks in these domains. When designing with this device, ensure proper decoupling and signal integrity practices are followed, as high-speed memory interfaces require careful PCB layout to minimize noise and reflections.

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W634GU6RB12J

W634GU6RB12J - 4Gb DDR3L SDRAM 933MHz | Winbond

The W634GU6RB12J is a 4Gbit DDR3L SDRAM from Winbond Electronics, organized as 256M x 16 and operating at 1.35V. It features a parallel interface with a clock speed of 933 MHz (DDR3L-1866) and a CAS latency of 20 ns. The device is housed in a 96-ball VFBGA package (7.5x13 mm) and is designed for high-bandwidth memory applications. DDR3L SDRAM is a type of dynamic random-access memory that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption while maintaining high data rates. It is part of the DDR3L memory family, which is widely used in computing, networking, and industrial applications where power efficiency is critical. Key features include a 4Gbit density, x16 organization, 933 MHz clock speed, and support for the DDR3L-1866 specification. The device offers a burst length of 8 and supports on-die termination (ODT) for improved signal integrity. It operates over a temperature range of -40°C to +105°C (TCASE) for the 12J industrial plus grade, making it suitable for harsh environments. The W634GU6RB12J utilizes advanced DRAM process technology to achieve high speed and low power. It includes features such as programmable CAS latency, write leveling, and self-refresh modes to optimize performance and power consumption. The 96-ball VFBGA package provides excellent thermal and electrical performance. Typical applications include embedded systems, networking equipment, industrial automation, and automotive infotainment. The low voltage and high speed make it ideal for power-sensitive designs that require high memory bandwidth. When designing with this device, ensure proper decoupling and signal integrity practices are followed. The DDR3L interface requires careful PCB layout to minimize crosstalk and maintain signal quality at high speeds.

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W681308DG

W681308DG - USB Audio Controller 16-bit 48-LQFP | Nuvoton

The Nuvoton W681308DG is a USB audio controller IC with an integrated 16-bit audio codec, housed in a 48-pin LQFP (7x7 mm) surface-mount package. As a member of the Winbond/Nuvoton W6813 series of USB audio controllers, it integrates a USB controller, audio codec, and embedded microcontroller into a single chip for USB audio peripheral designs. A USB audio controller is a mixed-signal device that implements the USB audio class protocol on the digital side and an audio codec (codec = coder-decoder) on the analog side. Within the system hierarchy, it sits between a general-purpose USB microcontroller and a dedicated audio codec: it handles USB enumeration, audio streaming, clocking, and sample-rate conversion, while also providing microphone and speaker signal paths. This integration reduces bill-of-materials count compared to a discrete USB MCU plus external codec solution. Key features of the W681308DG include a 16-bit audio data path, USB full-speed audio transport, integrated microphone and speaker audio channels, and a compact 7x7 mm 48-LQFP footprint that supports consumer peripheral form factors. The device operates from a 3.3 V supply, consistent with the family datasheet description of the W681308 series as a 3.3 V part. Architecturally, the W681308 combines an 8-bit CISC microcontroller core with on-chip program memory and a hardwired USB audio function block. The codec front end handles anti-aliasing filtering, ADC for microphone inputs, and DAC for speaker outputs, while the MCU firmware manages HID interfaces, mute/volume controls, and other USB descriptor behavior. Refer to the manufacturer datasheet for precise clock, PLL, and interface specifications. Typical applications include USB headset and headphone amplifiers, desktop microphone arrays, USB speakerphones, VoIP handsets, and general USB audio dongles where a single-chip, low-cost USB audio solution is required. A key design consideration is analog layout: the microphone preamp and DAC outputs are sensitive to digital return-path noise, so a solid ground plane, careful separation of analog and digital traces, and proper decoupling of the 3.3 V rail per the manufacturer datasheet recommendations are essential for a low-noise result. This page synthesizes distributor sourcing data, datasheet references, and practical design notes not found in the manufacturer datasheet.

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W78E051C40PL

W78E051C40PL - 8-bit 8051 MCU, 4KB Flash, 40MHz, 44-PLCC | Nuvoton

The Nuvoton/Winbond W78E051C40PL is an 8-bit 8051-compatible microcontroller operating up to 40 MHz, integrating 4 KB of in-system programmable Flash EPROM and 128 bytes of on-chip RAM in a 44-pin PLCC package. According to the manufacturer datasheet (publication release November 10, 2006, Revision A4), the W78E051C40PL exposes four 8-bit bi-directional bit-addressable I/O ports (P0-P3) plus an additional 4-bit P4 port, two 16-bit timer/counters, a full-duplex UART, and an enhanced 6-source/2-level interrupt controller. The "40" suffix denotes the 40 MHz top clock, while the "PL" package code designates the 44-lead Plastic Leaded Chip Carrier (JEDEC MS-018). Programming is supported via standard 8051 tools because the instruction set is binary-compatible with the industry-standard MCS-51 core. An 8051 microcontroller (technically an MCS-51 family MCU) is an 8-bit Harvard-architecture CISC microcomputer originally introduced by Intel in 1980; despite its age the family remains popular in cost-sensitive, deterministic, deeply embedded applications because of its tiny footprint, predictable interrupt latency, and unparalleled third-party tool support. As a Flash EPROM variant the W78E051C family sits at the highest tier of the classic 8051 hierarchy: mask-ROM < OTP EPROM < Flash EPROM, with Flash enabling ISP and field-upgradeable firmware. In the broader taxonomy, an MCU is a programmable subset of a microprocessor and, more generally, a digital integrated circuit under power management and embedded-computing classifications. Key features include 4 KB Flash program memory, 128 bytes internal RAM, 36 general-purpose digital I/O lines, two 16-bit timers/counters, one UART with framing-error detection, six interrupt sources with two priority levels, on-chip oscillator with external crystal, power-saving Idle and Power-Down modes, and an in-system programming (ISP) interface through the serial port. According to the datasheet the device supports a wide operating frequency range, allowing software to reduce clock speed dynamically for power-sensitive applications. Architecturally, the W78E051C uses a 12-clock-per-machine-cycle core (the classic 8051 convention) with separate 64 KB program and 64 KB external-data address spaces, plus a 256-byte internal RAM space split between register banks, bit-addressable area, and user RAM. The Flash memory subsystem provides on-chip page-erase and byte-program capability, supporting in-application firmware updates via the UART bootloader on PLCC-package variants. Typical applications include industrial control subsystems, home appliance mainboards, keyboard/mouse scanners, sensor signal conditioning, low-cost USB bridges, LED display drivers, and legacy 8051 firmware upgrades. The wide frequency range and low-power Idle/Power-Down modes make it suitable for both mains-powered controllers and battery-backed utilities. Design-wise, ensure the EA/VPP pin is tied to VCC for internal-Fetch operation, or driven to +12 V only during parallel programming. Decouple VCC and AVCC (if present) with 0.1 microfarad ceramic capacitors placed within 5 mm of the pins to suppress switching noise during oscillator start-up and ISP writes. This page synthesizes distributor pricing, cross-reference drop-in alternatives (Nuvoton W78E052 and W78E058 variants) and practical PCB layout notes not consolidated in the manufacturer datasheet.

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W78E051DFG

W78E051DFG - 40MHz 8052 8-Bit MCU with 4KB Flash | Nuvoton

Nuvoton Technology Corporation W78E051DFG is an 8-bit 8052-compatible microcontroller operating up to 40 MHz, with 4 KB of flash program memory and 36 general-purpose I/O pins in a 44-pin QFP package. Its stated operating supply range is 2.4 V to 5.5 V, making it suitable for embedded control systems operating from a regulated 5 V rail or other compatible source. An 8052 microcontroller is an embedded microcontroller architecture combining a small general-purpose CPU core with program memory, data memory, parallel I/O, serial communication, timers, and system-control peripherals. The W78E051 series belongs to the broader microcontroller category, which sits above processor cores and below embedded-control semiconductor solutions used in industrial products, appliances, access controls, and compact automation equipment. The W78E051DFG provides 4 KB (4K x 8) of flash program memory for firmware storage and an operating speed of 40 MHz. Its listed peripherals include a power-on reset, watchdog timer, UART/USART interface, and external bus interface. The 36 available I/O pins provide substantial parallel connectivity for discrete inputs, output control, indicators, relays, and external interface signals without requiring a larger package. The device operates from 2.4 V to 5.5 V and is specified for industrial temperature conditions from -40 °C to 70 °C. Flash memory allows firmware to remain resident without a separate external memory component, simplifying both PCB routing and production programming. The 40 MHz clock rate also gives the 8-bit CPU more instruction throughput than lower-frequency 8051-class devices while retaining the familiar programming model. Typical uses include appliance controllers, keyboard and human-interface panels, access-control equipment, small motor or relay controllers, industrial interface modules, and compact embedded products. Its combination of 36 I/O pins, serial communication, external bus support, and watchdog protection is particularly useful when a design needs flexible parallel connectivity without a high-pin-count microcontroller package. When designing around the W78E051DFG, verify every peripheral, clock option, interrupt vector, and electrical limit against the current manufacturer datasheet before schematic release. The supplied search evidence confirms the principal specifications but does not expose the complete pin map, memory map, timing diagrams, or electrical characteristics needed for a production design. This page consolidates the verified distributor information, core MCU specifications, sourcing links, and design limitations for the W78E051DFG. It also separates confirmed facts from unavailable engineering data, helping engineers establish whether the 44-pin 8052-compatible device is appropriate before beginning a drop-in PCB or firmware evaluation.

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W78E051DLG

W78E051DLG - 8-Bit 40MHz 4KB Flash 8051 MCU | Nuvoton

The Nuvoton Technology Corporation W78E051DLG is an 8-bit 8052-compatible W78 series microcontroller with a 40 MHz operating frequency, 4 KB of programmable flash memory organized as 4K x 8, and a 48-pin LQFP package. It operates from a 2.4 V to 5.5 V supply, supporting both 5 V and 3.3 V embedded systems. A microcontroller, or MCU, is a semiconductor that integrates a CPU core, flash program memory, data memory, and peripherals into one device. Within the embedded-control hierarchy, the W78E051DLG belongs to the 8-bit 8051/8052 MCU family rather than a 16-bit or 32-bit microcontroller. Its role is to execute embedded firmware, monitor digital inputs, drive outputs, and communicate with sensors, actuators, human-interface devices, and industrial peripherals. The key specifications of this device are a 40 MHz clock, 4 KB flash for firmware storage, and a 2.4 V to 5.5 V operating range. Verified distributor listings describe the part as an 8052 W78 microcontroller with 4K x 8 flash and Pb-free construction. The 48-pin LQFP-48 package measures 7 mm by 7 mm and provides a practical pin count for external interfacing, clocking, reset, programming, and mixed-signal control applications. The 8052-compatible architecture is appropriate for cost-sensitive embedded designs that rely on established compiler, debugger, and programming-tool ecosystems. At 40 MHz, the processor offers considerably more instruction throughput than legacy 8-bit systems operating near 12 MHz or 24 MHz. The available verified data does not state the RAM capacity, peripheral set, oscillator options, ADC performance, or timer configuration, so those parameters should be confirmed in the manufacturer datasheet before final schematic or firmware design. Typical uses for the W78E051DLG include compact industrial controllers, appliance control boards, data-acquisition modules, LED and display systems, and 8-bit sensor-hub designs. The 36 I/O indicated in one distributor listing provides a practical basis for digital control, while the 4 KB flash limit makes the device best suited to firmware with modest code size. Applications requiring substantial buffer storage, high-resolution analog conversion, or large protocol stacks should verify those requirements before committing to the part. Design planning should begin by confirming the complete pin assignment, peripheral multiplexing, and programming interface in the manufacturer datasheet. The LQFP-48 footprint also requires deliberate decoupling, clock-routing, and reset-layout planning to avoid analog-noise coupling and startup problems. Because the verified listings provide only a partial specification set, procurement decisions should not rely on distributor summaries alone. This page consolidates distributor pricing, availability, package information, and verified electrical attributes while separating confirmed data from unconfirmed parameters. It also provides a same-family drop-in comparison framework and practical design notes that are not present in a standard distributor catalog entry.

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Subcategories

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W634GU6RB-09 - 4Gb DDR3L SDRAM 1066MHz | Winbond

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W634GU6RB-11 - 4Gb DDR3L SDRAM 933MHz | Winbond

W634GU6RB-11TR - 4Gb DDR3L SDRAM 933MHz | Winbond

W634GU6RB-12 - 4Gb DDR3L SDRAM x16 933MHz | Winbond

W634GU6RB09I - 4Gb DDR3L SDRAM x16 1066MHz | Winbond

W634GU6RB09J - 4Gb DDR3L SDRAM x16 1066MHz | Winbond

W634GU6RB11I - 4Gb DDR3L SDRAM x16 933MHz | Winbond

W634GU6RB11J - 4Gb DDR3L SDRAM x16 933MHz | Winbond

W634GU6RB12I - 4Gb DDR3L SDRAM x16 800MHz | Winbond

W634GU6RB12J - 4Gb DDR3L SDRAM 933MHz | Winbond

W681308DG - USB Audio Controller 16-bit 48-LQFP | Nuvoton

W78E051C40PL - 8-bit 8051 MCU, 4KB Flash, 40MHz, 44-PLCC | Nuvoton

W78E051DFG - 40MHz 8052 8-Bit MCU with 4KB Flash | Nuvoton

W78E051DLG - 8-Bit 40MHz 4KB Flash 8051 MCU | Nuvoton