Microcontrollers

Products (20,000+)

C8051F321R - 25MHz 16KB Flash USB 2.0 MCU | Silicon Labs (Tape & Reel)
C8051F321R

C8051F321R - 25MHz 16KB Flash USB 2.0 MCU | Silicon Labs (Tape & Reel)

The Silicon Labs C8051F321R is an 8-bit mixed-signal microcontroller with a 25 MHz pipelined 8051 core, 16 KB of on-chip Flash memory, an on-board USB 2.0 function controller with an integrated transceiver, and a 10-bit ADC capable of 200 ksps. It operates from a 2.7 V to 3.6 V supply and is offered in the 28-MLP QFN package under the orderable C8051F321R-GM designation. A microcontroller is a programmable system-on-chip that combines a CPU core, memory, analog peripherals, digital I/O, and communication interfaces. The C8051F321R belongs to the 8-bit microcontroller category and specifically to the C8051F32x family, combining the familiar 8051 instruction architecture with enhanced peripherals, Flash ISP programming, USB connectivity, and mixed-signal measurement capability. Key features include 25 MIPS execution, 16 KB Flash, a 10-bit ADC with up to 200 ksps conversion performance, 21 I/O ports, and a USB 2.0 full-speed function controller with on-chip clock recovery. The integrated USB transceiver removes the need for a separate USB PHY in direct USB applications. A selectable reference can be supplied from an external VREF pin, VDD, or the internal reference, while an external conversion-start input supports triggered measurement systems. The pipelined 8051 core provides high throughput for its 8-bit class, while the dedicated USB controller handles enumeration and low-speed or full-speed USB traffic in firmware. The 16 KB Flash capacity suits compact control systems, USB interface accessories, data-acquisition nodes, and human-interface-device designs where code size is moderate but peripheral integration and USB connectivity are valuable. Typical applications include USB-to-serial adapters, HID controllers, industrial data-acquisition modules, programmable instrumentation, USB-connected sensor nodes, and embedded control boards requiring analog measurement alongside digital communications. Designers should verify the exact package variant and exposed-pad requirements against the manufacturer datasheet before layout release, and must confirm USB impedance, decoupling, and firmware-driver requirements. This page consolidates verified manufacturer and distributor information, package-specific ordering data, and practical selection guidance for engineers evaluating the C8051F321R in embedded USB and mixed-signal designs.

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C8051F330 - 25MHz 8-Bit Mixed-Signal MCU w/ 10-Bit ADC | Silicon Labs
C8051F330

C8051F330 - 25MHz 8-Bit Mixed-Signal MCU w/ 10-Bit ADC | Silicon Labs

The Silicon Labs C8051F330 is a highly integrated mixed-signal 8-bit System-on-a-Chip microcontroller featuring a pipelined 8051-compatible core with up to 25 MHz performance, 8 kB of on-chip Flash program memory, 0.75 kB of RAM, and a 20-pin QFN (MLP) 4 x 4 mm package. According to the Silicon Labs C8051F33x datasheet, the part integrates a 10-bit, 16-channel, 200 kSPS ADC and a 10-bit, 1-channel DAC alongside I2C, SPI and UART serial interfaces and four 16-bit timers. A mixed-signal MCU is a microcontroller that combines a digital core with on-chip analog conversion and conditioning blocks. In the component taxonomy it sits between microcontroller and mixed-signal system-on-a-chip, and within the broader hierarchy it belongs to the embedded processor family alongside 8-bit MCU, 32-bit MCU and SoC. This integration means a single 4 x 4 mm device can acquire analog sensor signals, run control algorithms and communicate over three serial buses without an external analog front end. Key differentiating features include the high-speed pipelined 8051-compatible core running up to 25 MHz, on-chip Silicon Labs 2-Wire (C2) debug circuitry that allows non-intrusive, full-speed in-circuit debugging of the production part, and an on-chip voltage comparator that can be enabled, disabled and routed to port I/O pins through a user-selectable mux. The C2 debug interface lets designers inspect and modify memory and registers, set breakpoints and single-step on the final assembled board rather than on a simulation model. Analog performance is centered on the 200 kSPS sampling rate of the 10-bit converter, which is sufficient for slow industrial process monitoring, potentiometer and resistive-sensor readout, and general mixed-signal control loops, while the 10-bit DAC provides a simple analog output for trimming, biasing or setpoint generation without an external converter. Four 16-bit timers cover timer/counter, PWM and capture/compare duties, and the 16 general-purpose port pins provide digital I/O. Typical applications include industrial sensor and process-control nodes, low-cost data loggers, building and HVAC control panels, battery-powered remote monitoring, small motor and actuator control, and consumer accessory interfaces such as keypads, LED indicator drivers and simple audio or motor-control sub-systems. When designing with the C8051F330, remember that the analog budget starts at a 10-bit resolution, so analog front-end design, reference stability and anti-aliasing filtering determine usable accuracy far more than raw converter speed. Decoupling requirements should follow the datasheet recommended capacitor values, and the C2 debug pins should be brought out to a footprint-compatible header for production testing. This page combines verified manufacturer and distributor specifications, a parameter-by-parameter comparison against pin-compatible family members and practical design guidance that is not found in the original C8051F33x datasheet.

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C8051F330-GM - 25MHz Mixed-Signal MCU | Silicon Labs
C8051F330-GM

C8051F330-GM - 25MHz Mixed-Signal MCU | Silicon Labs

Silicon Labs C8051F330-GM is a mixed-signal 8-bit microcontroller with a 25 MHz 8051-compatible core, 8 kB Flash memory, 0.75 kB RAM, and communication peripherals including I2C, SPI, and UART. It is packaged in a 20-pin QFN, identified by DigiKey as 20-MLP (4x4). The device is designed for compact embedded control systems that require integrated mixed-signal processing, serial connectivity, and multiple timer resources in a small surface-mount footprint. A microcontroller is a programmable semiconductor that combines a CPU core, memory, peripherals, and input/output functions on one integrated circuit. In the broader electronics hierarchy, the C8051F330-GM belongs to the 8-bit MCU category, integrates digital control with analog and communication functions, and is used as the central controller in embedded products. Its mixed-signal architecture allows software to coordinate sensing, timing, serial data transfer, and external control functions without requiring several separate discrete components. Key features include 25 MHz performance, 8 kB of Flash, 0.75 kB of RAM, four 16-bit timers, I2C, SPI, UART, and 21 I/O ports as reported in the verified distributor data. The MCU is designed for applications that need more peripheral integration than a basic general-purpose logic controller while retaining the simplicity of an 8-bit architecture. Its compact 4 mm by 4 mm package supports space-constrained boards and high-density embedded equipment. The manufacturer describes the device as a highly integrated mixed-signal 8-bit MCU and identifies its core as a pipelined 8051-compatible architecture capable of up to 25 MIPS in the family documentation. The available verified information specifies a 2.7 V to 3.6 V supply range for this device in one distributor result, while detailed timing, ADC, comparator, oscillator, and electrical characteristics remain dependent on the manufacturer datasheet and must be confirmed before design release. Typical applications include compact sensor controllers, industrial monitoring equipment, consumer accessories, communication modules, and low-power embedded control boards. I2C and SPI support can simplify connection to sensors, displays, memory, and digital peripherals, while the four 16-bit timers are useful for periodic sampling, timing, motor-control sequencing, or pulse-width-related tasks. The small package makes the device suitable for designs where board area is limited. Designers should confirm the exact pin functions, exposed-pad connection, recommended decoupling, clock configuration, programming method, and mixed-signal layout requirements from the official C8051F33x datasheet. Because this is a mixed-signal MCU, analog and digital return paths, power distribution, and exposed-pad thermal treatment should be planned with the same care used for precision analog circuitry. This page consolidates the verified distributor and manufacturer specifications, explains the role of the C8051F330-GM in embedded mixed-signal systems, and separates confirmed values from parameters that require datasheet review before production design.

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C8051F330R - 25MHz 8-Bit Mixed-Signal MCU w/ 10-Bit ADC | Silicon Labs (Tape & Reel)
C8051F330R

C8051F330R - 25MHz 8-Bit Mixed-Signal MCU w/ 10-Bit ADC | Silicon Labs (Tape & Reel)

The Silicon Labs C8051F330R is a highly integrated mixed-signal 8-bit System-on-a-Chip microcontroller featuring a pipelined 8051-compatible core with up to 25 MHz performance, 8 kB of on-chip Flash program memory, 0.75 kB of RAM, and a 20-pin QFN (MLP) 4 x 4 mm package. According to the Silicon Labs C8051F33x datasheet, the part integrates a 10-bit, 16-channel, 200 kSPS ADC and a 10-bit, 1-channel DAC alongside I2C, SPI and UART serial interfaces and four 16-bit timers. A mixed-signal MCU is a microcontroller that combines a digital core with on-chip analog conversion and conditioning blocks. In the component taxonomy it sits between microcontroller and mixed-signal system-on-a-chip, and within the broader hierarchy it belongs to the embedded processor family alongside 8-bit MCU, 32-bit MCU and SoC. This integration means a single 4 x 4 mm device can acquire analog sensor signals, run control algorithms and communicate over three serial buses without an external analog front end. Key differentiating features include the high-speed pipelined 8051-compatible core running up to 25 MHz, on-chip Silicon Labs 2-Wire (C2) debug circuitry that allows non-intrusive, full-speed in-circuit debugging of the production part, and an on-chip voltage comparator that can be enabled, disabled and routed to port I/O pins through a user-selectable mux. The C2 debug interface lets designers inspect and modify memory and registers, set breakpoints and single-step on the final assembled board rather than on a simulation model. Analog performance is centered on the 200 kSPS sampling rate of the 10-bit converter, which is sufficient for slow industrial process monitoring, potentiometer and resistive-sensor readout, and general mixed-signal control loops, while the 10-bit DAC provides a simple analog output for trimming, biasing or setpoint generation without an external converter. Four 16-bit timers cover timer/counter, PWM and capture/compare duties, and the 16 general-purpose port pins provide digital I/O. Typical applications include industrial sensor and process-control nodes, low-cost data loggers, building and HVAC control panels, battery-powered remote monitoring, small motor and actuator control, and consumer accessory interfaces such as keypads, LED indicator drivers and simple audio or motor-control sub-systems. When designing with the C8051F330R, remember that the analog budget starts at a 10-bit resolution, so analog front-end design, reference stability and anti-aliasing filtering determine usable accuracy far more than raw converter speed. Decoupling requirements should follow the datasheet recommended capacitor values, and the C2 debug pins should be brought out to a footprint-compatible header for production testing. This page combines verified manufacturer and distributor specifications, a parameter-by-parameter comparison against pin-compatible family members and practical design guidance that is not found in the original C8051F33x datasheet.

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C8051F331 - 25MHz Mixed-Signal 8-Bit MCU | Silicon Labs
C8051F331

C8051F331 - 25MHz Mixed-Signal 8-Bit MCU | Silicon Labs

The Silicon Labs C8051F331 is a mixed-signal 8-bit microcontroller with a 25 MHz 8051 core, 8 KB of Flash memory, 768 bytes of RAM, and a 20-pin QFN package measuring 4 mm by 4 mm. It integrates a 12-bit ADC, a 12-bit DAC, one comparator, four 16-bit timers, and I2C, SPI, and UART communication interfaces. Its mixed-signal architecture combines an embedded 8-bit MCU with on-chip analog peripherals, making it suitable for compact control systems that require sensing, actuation, and serial communications in one device. An 8051-compatible MCU is an embedded microcontroller whose instruction set and register organization are based on the Intel 8051 architecture. Within the product hierarchy, the C8051F331 belongs to the mixed-signal microcontroller family, combining digital control, Flash program memory, RAM, timers, serial interfaces, and analog conversion functions. This integration reduces the number of external components required in sensor-control, data-acquisition, and compact embedded-control designs. The C8051F331 operates at up to 25 MHz and provides 25 MIPS of processing performance. Its 8 KB Flash memory supports an 8K by 8-bit program-memory organization, while 768 bytes of RAM accommodate working data and stack operations. Four 16-bit timers support periodic events, timing measurements, and communication baud-rate generation. The integrated I2C, SPI, and UART interfaces enable the controller to connect to sensors, converters, displays, and external processors through several common serial protocols. The on-chip analog resources include an ADC, a DAC, and one comparator. These peripherals allow a design to acquire real-world inputs and produce an analog output without requiring separate converters. On-chip Power-On Reset, VDD monitoring, and watchdog functions support reliable startup and supervision. The manufacturer describes the C8051F331 as an ISP Flash MCU, supporting in-system programming for programming and updating the embedded firmware. Typical uses include industrial sensor nodes, compact data-acquisition modules, motor and actuator controllers, temperature-measurement equipment, and communication-enabled embedded systems. Its small QFN-20 footprint supports compact assemblies, although the exposed-pad construction requires deliberate PCB layout and thermal management. Engineers should also account for the limited 8 KB program memory when sizing firmware and application protocols. For a new PCB, use the manufacturer datasheet to confirm the exact exposed-pad dimensions, decoupling requirements, programming signals, and pin assignments. For an existing QFN-20 design, do not assume that another C8051F33x member is interchangeable; compare memory, analog peripherals, timers, I/O availability, and package details before substituting a device. Verified distributor pricing and a manufacturer product page are summarized below for engineering selection and procurement planning.

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C8051F331R - 25MHz Mixed-Signal 8-Bit MCU | Silicon Labs (Tape & Reel)
C8051F331R

C8051F331R - 25MHz Mixed-Signal 8-Bit MCU | Silicon Labs (Tape & Reel)

The Silicon Labs C8051F331R is a mixed-signal 8-bit microcontroller with a 25 MHz 8051 core, 8 KB of Flash memory, 768 bytes of RAM, and a 20-pin QFN package measuring 4 mm by 4 mm. It integrates a 12-bit ADC, a 12-bit DAC, one comparator, four 16-bit timers, and I2C, SPI, and UART communication interfaces. Its mixed-signal architecture combines an embedded 8-bit MCU with on-chip analog peripherals, making it suitable for compact control systems that require sensing, actuation, and serial communications in one device. An 8051-compatible MCU is an embedded microcontroller whose instruction set and register organization are based on the Intel 8051 architecture. Within the product hierarchy, the C8051F331R belongs to the mixed-signal microcontroller family, combining digital control, Flash program memory, RAM, timers, serial interfaces, and analog conversion functions. This integration reduces the number of external components required in sensor-control, data-acquisition, and compact embedded-control designs. The C8051F331R operates at up to 25 MHz and provides 25 MIPS of processing performance. Its 8 KB Flash memory supports an 8K by 8-bit program-memory organization, while 768 bytes of RAM accommodate working data and stack operations. Four 16-bit timers support periodic events, timing measurements, and communication baud-rate generation. The integrated I2C, SPI, and UART interfaces enable the controller to connect to sensors, converters, displays, and external processors through several common serial protocols. The on-chip analog resources include an ADC, a DAC, and one comparator. These peripherals allow a design to acquire real-world inputs and produce an analog output without requiring separate converters. On-chip Power-On Reset, VDD monitoring, and watchdog functions support reliable startup and supervision. The manufacturer describes the C8051F331R as an ISP Flash MCU, supporting in-system programming for programming and updating the embedded firmware. Typical uses include industrial sensor nodes, compact data-acquisition modules, motor and actuator controllers, temperature-measurement equipment, and communication-enabled embedded systems. Its small QFN-20 footprint supports compact assemblies, although the exposed-pad construction requires deliberate PCB layout and thermal management. Engineers should also account for the limited 8 KB program memory when sizing firmware and application protocols. For a new PCB, use the manufacturer datasheet to confirm the exact exposed-pad dimensions, decoupling requirements, programming signals, and pin assignments. For an existing QFN-20 design, do not assume that another C8051F33x member is interchangeable; compare memory, analog peripherals, timers, I/O availability, and package details before substituting a device. Verified distributor pricing and a manufacturer product page are summarized below for engineering selection and procurement planning.

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C8051F340-GQ - 8-Bit 48 MHz USB MCU | Silicon Labs
C8051F340-GQ

C8051F340-GQ - 8-Bit 48 MHz USB MCU | Silicon Labs

The Silicon Labs C8051F340-GQ is an 8-bit C8051F34x mixed-signal microcontroller with a 48 MHz maximum clock, 64 KB of Flash program memory, 4.25 KB of RAM, and USB 2.0 connectivity, housed in a 48-pin TQFP package measuring 7 x 7 mm. Its integrated USB controller includes a transceiver and on-chip clock recovery, allowing USB applications without external resistors, crystal, voltage regulator, EEPROM, or other USB interface components. A microcontroller is a programmable integrated circuit containing a CPU core, memory, peripherals, and input/output interfaces. The C8051F34x belongs to the 8051 microcontroller family and combines digital control with mixed-signal measurement functions. Its 8-bit data bus supports embedded control, while the high-speed C8051F34x core executes firmware for protocol handling, data acquisition, and device control. Key features include a 10-bit, 20-channel ADC operating to 200 ksps, a voltage reference, two comparators, an internal temperature sensor, a watchdog timer, an internal oscillator, a power-on reset, a VDD monitor, and an integrated voltage regulator. The USB 2.0 function controller supports direct USB-connected products, while 5 V-tolerant port I/O and RST inputs support mixed-voltage external interfaces. The device combines an 8051-compatible control core with integrated analog peripherals, reducing external component count in USB instrumentation, data acquisition, human-interface, and embedded control systems. Its 64 KB Flash memory provides room for application firmware and USB code, while 4.25 KB RAM supports working data and stack operations. The integrated analog block enables sensor reading, threshold detection, and control functions without a separate ADC. Typical applications include USB-connected test equipment, measurement instruments, data-acquisition modules, industrial control products, and embedded USB peripherals. The 48 MHz clock specification is listed by DigiKey, while Mouser describes the part as a 50 MHz 8-bit MCU; engineers should verify the exact operating conditions and clock configuration in the manufacturer datasheet before design release. The principal design consideration is package and power planning. This exact orderable suffix uses the 48-pin TQFP footprint, and the manufacturer documents other C8051F34x devices in 32-pin LQFP or QFN packages. USB routing, analog-reference grounding, decoupling, and crystal or clock selection must be planned according to the manufacturer’s recommended layout and USB application requirements. This page combines the verified manufacturer feature summary, package information, distributor listings, and cross-reference evidence into a practical component-selection record. It also distinguishes verified drop-in evidence from family variants and highlights where a replacement requires pinout, firmware, memory, and peripheral verification before approval.

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C8051F350-GQ - 50MHz 8-Bit Mixed-Signal MCU | Silicon Labs
C8051F350-GQ

C8051F350-GQ - 50MHz 8-Bit Mixed-Signal MCU | Silicon Labs

Silicon Labs C8051F350-GQ is an 8-bit mixed-signal microcontroller with a 50 MHz pipelined 8051-compatible core, 8 KB of flash program memory, 768 bytes of RAM, and a 24-bit ADC subsystem, all integrated into a 32-LQFP 7 x 7 mm package. The device also includes on-chip power-on reset, a VDD monitor, a watchdog timer, an internal clock oscillator, analog peripherals, and a temperature sensor. A mixed-signal microcontroller is a semiconductor that combines a digital processing core with analog-to-digital conversion and other analog or mixed-signal peripherals. In the broader hierarchy, the C8051F350-GQ is an 8-bit MCU, part of the C8051 family, and uses a pipelined 8051-compatible instruction set. This integration allows one device to perform control processing and acquire or generate analog signals without requiring separate external components for every measurement function. The C8051F350-GQ operates at up to 50 MHz and provides 8 KB of flash memory organized as 8K x 8. Its 768 x 8 RAM supports working data and stack operations, while 17 general-purpose I/O pins provide connections to sensors, displays, actuators, and communication circuits. The ADC subsystem includes an eight-input multiplexer, a programmable gain stage with a 128x gain setting, no-missing-code operation with 0.0015% nonlinearity, and conversion rates up to 1 ksps. The mixed-signal architecture places measurement and control functions on one system-on-a-chip device. Its ADC can sample multiple analog inputs through the eight-input multiplexer, while the programmable gain stage allows the front end to accommodate signals of different amplitudes. Two 8-bit DACs, a built-in temperature sensor, an internal oscillator, power-on reset, VDD monitoring, and watchdog support reduce the number of external support components required in a compact embedded design. Typical uses include industrial sensor acquisition, temperature measurement, process monitoring, low-cost instrumentation, and compact embedded control systems. The 50 MHz core is suitable for protocol handling, digital control, and foreground/background task execution, while the ADC and temperature sensor support local measurement without external conversion hardware. The 32-LQFP package also permits automated board assembly and is practical for moderate pin-count control boards. Design the power, clock, analog, and digital sections carefully. Keep analog and digital return currents separated, place analog bypass capacitors near the supply pins, and route sensor inputs away from fast-switching traces. Confirm the required supply voltage and operating temperature against the manufacturer datasheet before releasing the PCB, because those limits are not stated in the product-page summary. This page combines the C8051F350-GQ electrical specifications, mixed-signal application guidance, package details, comparison information, and practical replacement considerations. It is structured to help engineers identify whether the 50 MHz 8051-compatible core, 24-bit ADC subsystem, 8 KB flash memory, and 32-LQFP footprint fit a specific embedded-control design.

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C8051F500-IM - 50MHz 8051 MCU with CAN | Silicon Labs
C8051F500-IM

C8051F500-IM - 50MHz 8051 MCU with CAN | Silicon Labs

The Silicon Labs C8051F500-IM is an 8-bit C8051F50x mixed-signal flash microcontroller operating at up to 50 MHz, with 64 KB of flash program memory, 4.25 KB of RAM, CAN and LIN connectivity, and a 48-QFN 7 x 7 mm package. It delivers up to 50 MIPS of mixed-signal processing performance in a compact surface-mount package. A microcontroller is a programmable semiconductor that combines a CPU core, memory, peripherals, and input/output interfaces on one integrated circuit. The C8051F500-IM belongs to the 8051-compatible MCU family, with the C8051F50x architecture positioned as an automotive and industrial mixed-signal platform. Its flash memory supports in-system programming, allowing firmware to be programmed or updated without removing the device from its target circuit. Key features include an 8-bit processor core, a 50 MHz clock, 64 KB of flash, and 4.25 KB of RAM. The integrated 12-bit ADC supports precision analog measurements, while CAN and LIN interfaces support communication in automotive, industrial, and distributed control systems. The 48-QFN package reduces board footprint compared with leaded or larger-outline alternatives and is suited to compact embedded controllers. The C8051F50x family combines digital control with mixed-signal peripherals. Its 50 MHz operating point provides substantially greater instruction throughput than conventional low-speed 8-bit controllers, supporting responsive control loops, protocol handling, and simultaneous peripheral operation. The family is designed to pack significant performance and 12-bit ADC integration into packages ranging from 32 to 48 pins. Typical uses include automotive body and comfort modules, industrial control panels, communication controllers, sensor acquisition systems, and CAN or LIN network nodes. For network-connected equipment, the combination of CAN, LIN, flash, and RAM supports a compact embedded node with local processing and field-updatable firmware. PCB design should account for the exposed thermal pad and high-speed layout requirements. Place decoupling capacitors close to the supply pins, route the exposed pad to the ground plane, and follow the package and pin-connection guidance in the manufacturer datasheet. Confirm the exact peripheral pin assignments before finalizing signal routing and connector protection. This page combines the verified device identity, package, memory, clock, interface, and mixed-signal characteristics with same-family drop-in alternatives and practical integration guidance. It is designed to accelerate MCU selection, schematic review, footprint verification, and sourcing decisions without obscuring differences in temperature grade, packaging, or peripheral configuration.

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C8051F500-IQ - 50MHz 8051 MCU, 64KB Flash | Silicon Labs
C8051F500-IQ

C8051F500-IQ - 50MHz 8051 MCU, 64KB Flash | Silicon Labs

The Silicon Labs C8051F500-IQ is an automotive-grade 8-bit C8051F50x mixed-signal microcontroller with a 50 MHz clock, 64 KB of in-system programmable Flash, and a 48-pin TQFP package measuring 7 x 7 mm. It combines a 50 MIPS execution rate with 12-bit analog conversion and CAN and LIN connectivity, making it suitable for compact automotive and industrial control systems. An 8051 microcontroller is an embedded processing platform that integrates a CPU, program memory, data memory, peripherals, and digital I/O on one semiconductor device. The C8051F50x family combines the widely established 8051 architecture with mixed-signal and communications peripherals. This hierarchy places the device in the MCU family, within embedded semiconductors and broader embedded processing systems. The C8051F500-IQ provides 40 digital I/O lines, 64 KB of Flash, 256 bytes of data RAM, 4 KB of auxiliary RAM, a 12-bit ADC with up to 32 channels, two analog comparators, and six Programmable Counter Array channels. Its 24 MHz on-chip oscillator supports the stated 50 MIPS throughput, while the integrated CAN and LIN interfaces support common vehicle and industrial communication networks. The C8051F500-IQ belongs to the C8051F50x mixed-signal MCU family, whose members offer pin-for-pin compatibility across the C8051F50x, C8051F51x, and C8051F58x/59x series within compatible package configurations. The manufacturer datasheet remains the controlling document for device-specific pin multiplexing, electrical limits, clocking, programming, and peripheral behavior. Pin assignments should be selected from the package pinout and alternate-function tables rather than inferred from the peripheral list. Typical uses include automotive body and chassis controllers, CAN or LIN network nodes, industrial monitoring equipment, sensor interfaces, and compact embedded controls that need local analog measurement. Its 50 MHz processing rate supports responsive control loops, while the 12-bit ADC provides measurement resolution without requiring a separate external converter in suitably partitioned systems. Designers should preserve the required bypass network, confirm the selected clock configuration, and program unused I/O pins according to the manufacturer’s recommended initialization procedure. Because the device combines high-speed digital operation with analog inputs, layout should keep analog inputs away from noisy clock and return paths, provide a quiet analog reference arrangement, and follow the recommended ground-plane strategy in the datasheet. This page consolidates the device’s key electrical, memory, connectivity, package, and mixed-signal characteristics with application guidance, pin-compatible family options, and engineering-focused design notes. Use the manufacturer datasheet for final clock, pin-function, programming, and qualification decisions.

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C8051F506-IM - 50MHz 8051 32KB Flash Automotive MCU | Silicon Labs
C8051F506-IM

C8051F506-IM - 50MHz 8051 32KB Flash Automotive MCU | Silicon Labs

The Silicon Labs C8051F506-IM is an 8-bit 8051-core mixed-signal microcontroller running at 50 MHz, integrating 32 KB of in-system programmable Flash and 4.25 KB of RAM in a 32-pin QFN (5x5 mm) package. It is AEC-Q100 qualified for automotive and industrial use, supports an extended operating temperature range up to +125 °C, and operates from a 1.8 V to 5.25 V supply. According to the Silicon Labs product page, the device is positioned as a highly integrated automotive and industrial MCU with integrated communication interfaces including CAN and LIN. An 8051 microcontroller is a Harvard-architecture 8-bit CPU originally introduced by Intel in 1980 and now widely licensed and extended by Silicon Labs (formerly Cygnal), Nuvoton, and others. The C8051F50x family belongs to the broader Mixed-Signal ISP Flash MCU Family - a hypernym hierarchy that places it under 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Modern 8051 cores from Silicon Labs achieve up to 50 MIPS throughput and integrate analog peripherals such as ADC, DAC, comparators, voltage references, and communication controllers onto a single die, eliminating external analog components. Key features of the C8051F506-IM include 32 KB (32K x 8) Flash, 4.25 KB RAM (256 bytes standard + 4 KB AUX RAM), a 12-bit ADC with up to 25 channels, an on-chip temperature sensor, two analog comparators, integrated CAN 2.0B and LIN 2.1 controllers, and 25 digital I/O lines. The 50 MHz core delivers 50 MIPS instruction throughput, making it suitable for real-time control loops. On-chip oscillators (24 MHz internal) eliminate external crystals in many designs. Typical applications include automotive body controllers and sensor nodes, LIN/CAN-connected ECUs, industrial CANopen or DeviceNet slaves, brushless DC motor control, and low-power sensor hubs. The AEC-Q100 grade and 125 °C capability let designers deploy the same firmware into under-hood and cabin environments. The wide 1.8 V-5.25 V supply range also enables direct connection to Li-ion or 3.3 V digital rails without level shifters. When designing with the C8051F506-IM, place the bypass capacitors (one 0.1 µF plus one 4.7 µF bulk) within 5 mm of the VDD pin to minimize digital switching noise on the analog reference. For automotive applications, follow the Silicon Labs EMC guidelines for CAN bus termination (typically 120 Ω split termination) and route LIN bus traces away from switching nodes. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes that go beyond what is in the manufacturer datasheet, helping engineers shorten evaluation cycles and make informed replacement decisions.

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C8051F564-IQ - 50MHz Mixed-Signal 8051 MCU | Silicon Labs
C8051F564-IQ

C8051F564-IQ - 50MHz Mixed-Signal 8051 MCU | Silicon Labs

The Silicon Labs C8051F564-IQ is an 8-bit C8051F56x mixed-signal microcontroller with a 50 MHz clock, 16 KB of Flash program memory, 2.25 KB of RAM, and a 32-LQFP 7 mm × 7 mm package. It operates from a 1.8 V to 5.25 V supply and provides 25 general-purpose I/O pins. CAN and LIN serial interfaces, mixed-signal conversion capability, and an automotive or industrial temperature grade make the device suitable for embedded control, communications, sensing, and actuator systems. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripheral interfaces, and I/O on one device. The C8051F564-IQ belongs to the C8051F56x mixed-signal MCU family and combines an 8051-compatible processing core with analog and digital control resources. Its mixed-signal architecture allows one microcontroller to supervise sensors, process control signals, manage communications, and actuate system outputs without requiring several separate controllers. The 50 MHz operating speed supports faster control-loop execution and efficient handling of serial traffic. Its 16 KB Flash memory provides on-chip storage for firmware, while 2.25 KB of RAM supports working variables, stack operations, and communication buffers. The device also includes CAN and LIN interfaces, enabling network participation in vehicle, industrial, and distributed embedded-control architectures without requiring an external network transceiver. The 1.8 V to 5.25 V operating range supports low-voltage industrial systems, 3.3 V equipment, and conventional 5 V embedded platforms. Programmable analog and timing peripherals are useful for acquisition, monitoring, and precise control tasks. The 25 I/O pins provide interfaces for sensors, switches, displays, communications, and power-control signals, while the compact 32-LQFP package simplifies surface-mount assembly. Typical applications include automotive body and comfort modules, industrial sensor nodes, CAN or LIN network controllers, motor and actuator controllers, and low-voltage embedded instrumentation. The integrated communications make it especially useful where multiple nodes must exchange status or control information over a vehicle or industrial network. Design the PCB with short return paths for ground and sensitive analog inputs, and route communication signals away from switching nodes. Confirm oscillator, reset, power, and decoupling requirements against the manufacturer datasheet. Treat -I as the industrial temperature option, and verify its complete operating-temperature limits before final qualification. This page combines package, memory, speed, interface, and application guidance with practical selection notes for engineers evaluating the C8051F564-IQ in mixed-signal embedded-control designs.

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C8051F574-IM - 50MHz 8-Bit Flash MCU | Silicon Labs
C8051F574-IM

C8051F574-IM - 50MHz 8-Bit Flash MCU | Silicon Labs

Silicon Labs C8051F574-IM is an 8-bit C8051F57x mixed-signal microcontroller with a 50 MHz operating frequency, 16 KB of flash memory, and a 40-QFN package measuring 6 x 6 mm. It belongs to the Silicon Labs C8051 family of 8051-compatible embedded processors and combines an integrated flash MCU core with mixed-signal peripherals for compact control systems. A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals into one package. In the broader hierarchy, the C8051F574-IM is an MCU, an embedded controller, and a flash-memory microcontroller. The 8051 architecture provides a familiar instruction set and development environment, while the higher operating frequency supports faster control-loop execution and responsive peripheral handling. The C8051F574-IM is identified as an 8-bit device with 50 MHz performance and 16 KB, or 16K x 8, of flash memory. Its 40-QFN package supports surface-mount assembly and provides a compact solution for embedded products requiring mixed-signal control, data acquisition, communication, or general-purpose automation. The family designation C8051F57x indicates a device within Silicon Labs' C8051 mixed-signal flash MCU product line. The available product information confirms the core device identity, flash capacity, clock frequency, architecture, and package dimensions. Detailed peripheral inventories, electrical limits, pin names, and memory-map functions should be confirmed against the manufacturer datasheet before a new PCB is released. The package drawing and pin-assignment table are especially important because the 40-QFN footprint includes a fine-pitch lead arrangement and an exposed thermal pad. Typical applications for this MCU include industrial control modules, compact sensor interfaces, motor-control subsystems, communication equipment, and low-cost embedded instruments. The mixed-signal capability is useful when a system must combine digital control with analog measurement or control functions while keeping the component count and board area low. The 50 MHz clock can improve timing margin for protocol handling and real-time control tasks, subject to the peripheral and electrical limits in the datasheet. When designing around the C8051F574-IM, begin with the datasheet pin description, memory organization, clock requirements, decoupling recommendations, and programming interface. Verify the exposed-pad connection and thermal design before production, because the 40-QFN package is intended for compact surface-mount layouts rather than through-hole assembly. This page combines the confirmed C8051F574-IM specifications with packaging guidance, application context, and the available verified cross-reference information for engineering planning.

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CC3220SF12ARGKR - SimpleLink Wi-Fi MCU, 1MB Flash, 256kB RAM | Texas Instruments
CC3220SF12ARGKR

CC3220SF12ARGKR - SimpleLink Wi-Fi MCU, 1MB Flash, 256kB RAM | Texas Instruments

The Texas Instruments CC3220SF12ARGKR is a SimpleLink 32-bit Arm Cortex-M4 Wi-Fi wireless microcontroller SoC with 1MB of internal Flash and 256kB of RAM, offered in a 64-pin VQFN (RGK) package with exposed thermal pad. It integrates an RF transceiver supporting IEEE 802.11 b/g/n at 2.4 GHz with 18 dBm transmit power output and -96 dBm receive sensitivity, alongside an applications Cortex-M4 MCU that runs user application code directly on-die. The part is the highest-memory variant of the three-member CC3220x family, distinguished by its dedicated 1MB user Flash. A SimpleLink Wi-Fi wireless MCU is a single-chip solution that combines an industry-standard microcontroller core with a Wi-Fi network processor, offloading the complex 802.11 MAC/PHY stack so the host MCU can focus on application logic. The CC3220x family sits within TI's broader SimpleLink MCU platform, which also includes low-energy Bluetooth, Sub-1 GHz, and host MCUs that share a common SDK and toolchain. The network processor subsystem includes its own ARM Cortex-M3 dedicated to Wi-Fi, hardware crypto engines, and a TCP/IP stack, allowing the application Cortex-M4 to wake only when needed for ultra-low-power IoT operation. Key features include integrated Wi-Fi security with hardware-accelerated WPA2 and WPA3, 27 GPIO pins, and a rich serial peripheral set including ADC, I2C, SPI, UART, and PCM interfaces. The wide supply range of 2.1V to 3.6V supports direct connection to a single Li-ion cell or 3.3V regulated rail. The CC3220SF12ARGKR is the SF (Secure Flash) variant with 1MB user Flash, building on the CC3220S's MCU-level file-system encryption, secure boot, and debug security, and the CC3220R's IoT networking security and device identity/keys. Architecturally, the CC3220SF separates the Wi-Fi network processor from the user application MCU, allowing independent firmware updates for each subsystem. The integrated hardware crypto block accelerates AES, SHA, and TLS handshake operations, offloading the application MCU. This makes it well-suited for cloud-connected IoT nodes where TLS handshake latency and power budget are critical. Typical applications include cloud-connected home automation gateways, industrial IoT sensor nodes reporting over MQTT, Wi-Fi-enabled medical telemetry devices, smart appliances with Over-The-Air update capability, and asset tracking beacons. The 1MB Flash supports richer application code than the CC3220S variant. When designing with this device, carefully follow TI's layout guidelines for the RF section, paying particular attention to the 50-ohm antenna trace impedance and ground plane stitching. The CC3220SF includes a 4-wire JTAG debug interface; ensure the debugger reset line is correctly pulled during flash programming to avoid bricking. This page synthesizes distributor pricing, drop-in CC3220x family alternatives, and practical design considerations not found in a quick scan of the manufacturer datasheet.

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CH32V203C8T6 - 144MHz RISC-V MCU, 64KB Flash, USB/CAN, LQFP-48 | WCH
CH32V203C8T6

CH32V203C8T6 - 144MHz RISC-V MCU, 64KB Flash, USB/CAN, LQFP-48 | WCH

The WCH (Nanjing Qinheng) CH32V203C8T6 is an industrial-grade, enhanced low-power 32-bit RISC-V microcontroller operating up to 144 MHz with 64 KB Flash and 20 KB SRAM, housed in a 48-pin LQFP package. The CH32V203C8T6 integrates dual USB (Host + Device) controllers, one CAN 2.0B interface, USB type-C PD support, and 12-bit ADC, making it well suited to industrial control, USB peripherals, and motor-control applications. What is an MCU? A microcontroller unit (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces (ADC, timers, communication buses). In the power-management hierarchy, an MCU sits above the power supply and below the application firmware; in taxonomy terms, it belongs to the class microcontrollers -> 32-bit MCUs -> RISC-V MCUs -> industrial-grade general-purpose MCUs. The RISC-V ISA is an open, royalty-free instruction-set architecture, in contrast to closed ISAs such as ARM Cortex-M, allowing WCH to deliver cost-optimized silicon. Key features include up to 64 KB on-chip program memory, 20 KB SRAM, an enhanced I/O port structure, a 12-bit ADC, and a low-power Run mode of approximately 49.3 uA/MHz. The CH32V203C8T6 supports both USB Host and USB Device roles simultaneously and adds a CAN 2.0B interface for industrial networking, with USB Type-C PD 3.0 negotiation support. Architecturally, the CH32V203C8T6 uses a 32-bit RISC-V core with separate instruction and data buses that can operate in parallel with DMA, reducing CPU load during high-throughput peripheral transactions. Multi-bus synchronous operation enables deterministic latency for time-critical USB and CAN traffic. Typical applications include industrial USB-to-CAN bridges, USB HID devices, USB type-C PD chargers, low-power sensor nodes, and consumer peripherals. The combination of dual-role USB and CAN is rare at this price point, simplifying BOMs for industrial gateways. When designing with the CH32V203C8T6, ensure the USB pins are routed with 90-ohm differential impedance and that the LQFP-48 thermal pad (if any) is soldered for power dissipation. Decouple each VDD pin with a 100-nF ceramic capacitor placed within 2 mm of the pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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COP8SAC720M8 - 8-Bit 10MHz OTP MCU 4KB | Texas Instruments
COP8SAC720M8

COP8SAC720M8 - 8-Bit 10MHz OTP MCU 4KB | Texas Instruments

The Texas Instruments COP8SAC720M8 is an 8-bit CMOS ROM-based and One-Time Programmable (OTP) microcontroller belonging to the COP8™ 8SA family, operating at up to 10 MHz with 4KB (4K x 8) of program memory and 128 bytes of RAM, packaged in a 20-pin SOIC Wide (7.50 mm). The MIC 555 timer companion ecosystem is unrelated. Key features include 16 digital I/O pins, an integrated power-on-reset (POR) circuit, and a low-pin-count 20-SOIC footprint aimed at very small package applications. Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, peripherals, and I/O on one silicon die. The COP8 (Controller Oriented Processor 8-bit) is Texas Instruments' CISC 8-bit architecture featuring a register-based design optimized for embedded control. OTP microcontrollers ship with one-time-programmable memory, allowing low-volume custom firmware for cost-sensitive and secure applications where code flexibility is sacrificed for unit price. Key features include 4KB (4K x 8) OTP program memory, 128 x 8 RAM, 16 I/O lines, on-chip Power-On-Reset eliminating external reset circuitry, and an integrated oscillator. The 20-pin SOIC Wide (0.295 inch / 7.50 mm body) gives the part MIC 0603-style PCB handling ease for through-hole-style hand-soldering and inspection, while still being surface-mount. Technical depth: The COP8SA family uses a CISC Harvard-like architecture with separate program and data spaces, a multi-source interrupt controller, and on-chip peripherals including timers and a watchdog timer. The 10 MHz clock yields ~1 µs instruction cycle, suitable for slow control tasks, sensor signal conditioning, and human-interface key-driven panels. Operating voltage spans 2.7V to 5.5V. Typical applications include white goods and HVAC control modules, simple sensor signal conditioning, low-cost consumer keypads, and industrial pushbutton interface boards. The MIC 5150 family of hot-swap controllers is unrelated to this MCU. This part is suited where code size below 4KB suffices and BOM cost is critical. Design consideration: Because this part is OTP, firmware cannot be field-updated. For prototypes or low-volume runs, choose FLASH-based parts like ATMEGA48A-AU. Always verify the LTB voltage drop tolerance before substituting. The COP8SAC7D2 should not be confused with this MPN (M7D2 suffix differs). This page synthesizes distributor pricing, lifecycle status, package detail, and drop-in alternatives not found on the manufacturer datasheet alone, providing an integrated resource for engineers sourcing the COP8SAC720M8.

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COP8SAC720M8/NOPB - 8-bit 10MHz 4KB OTP MCU | Texas Instruments
COP8SAC720M8/NOPB

COP8SAC720M8/NOPB - 8-bit 10MHz 4KB OTP MCU | Texas Instruments

The Texas Instruments COP8SAC720M8/NOPB is an 8-bit CMOS microcontroller from the COP8 family (8SA sub-series) featuring 4KB of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 16 digital I/O lines, housed in a 20-pin SOIC (0.295" / 7.50mm width) package. It runs at 10MHz from a single 3.3V or 5V supply, integrates power-on reset (POR), and provides a very small form factor for space-constrained applications. The /NOPB suffix designates a lead-free, RoHS-compliant shipping version. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and programmable I/O peripherals on one IC. OTP microcontrollers ship blank and are programmed once by the OEM or via a programming socket before deployment - ideal for low-cost, medium-volume production where mask-ROM NRE charges are not justified. The COP8 core uses a CISC instruction set optimized for byte-level bit manipulation, common in white-goods and appliance control. Key features of the COP8SAC720M8/NOPB include 4KB (4K x 8) OTP program memory, 128 x 8 RAM, an integrated power-on reset circuit that holds the CPU in reset until VDD stabilizes, 16 general-purpose I/O pins multiplexed with peripheral functions, a programmable watchdog timer, and an 8-bit timer/counter. The 10MHz clock supports instruction-cycle execution in the 200ns range, sufficient for slow loop-control and user-interface scanning tasks. Typical applications for the COP8SAC720M8/NOPB include white-goods controllers (washing machines, dishwashers, microwave ovens), HVAC thermostats, low-end remote controls, simple sensor read-out boards, and replacement of discrete 8-bit logic in legacy product lines. Its 20-SOIC footprint and wide operating voltage range make retrofit into existing COP8-based designs straightforward. When designing with this part, note that OTP programming requires a special programmer or gang programmer prior to solder; firmware cannot be updated in the field. The part is RoHS-compliant (lead-free /NOPB suffix) per the addressable manufacturing data. Programming model and peripheral registers follow the COP8 architecture reference - consult the manufacturer datasheet for the full register map, interrupt vector table, and timing diagrams before prototyping.

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COP8SAC720M8X/NOPB - 8-Bit 10MHz 4KB OTP MCU | Texas Instruments
COP8SAC720M8X/NOPB

COP8SAC720M8X/NOPB - 8-Bit 10MHz 4KB OTP MCU | Texas Instruments

The Texas Instruments COP8SAC720M8X/NOPB is an 8-bit CMOS ROM-based and One-Time Programmable (OTP) microcontroller from the COP8™ 8SA family, delivering 10 MHz CPU performance with 4 KB of program memory and 128 bytes of RAM in a 20-pin SOIC package. Per the manufacturer datasheet, this device integrates power-on reset, low-EMI oscillator design, and very small packaging, making it suited for cost-sensitive embedded applications requiring reliable one-time-programmable code storage. The COP8 (Controller Oriented Processor) family is a mature 8-bit CISC architecture originated by National Semiconductor and now maintained by Texas Instruments. COP8 microcontrollers are accumulator-based Harvard-architecture devices featuring a rich instruction set, multiple addressing modes, and integrated peripherals such as timers, A/D converters, and serial interfaces. They are widely deployed in white-goods, appliance, industrial-control, and consumer-electronics applications where deterministic behavior, low EMI, and OTP-based code security are valued. The COP8SAC720M8X/NOPB is the OTP variant of the COP8SA family, intended for prototyping and low-to-medium volume production. Key features include 16 GPIO pins, an 8-bit accumulator-based CPU core, on-chip power-on reset eliminating external reset circuitry, and a wide operating voltage range of 2.7 V to 5.5 V. The 20-SOIC package measures 7.50 mm in body width, and the device operates over the industrial -40 °C to +85 °C temperature range. The integrated oscillator with low-EMI feature reduces electromagnetic emissions in noise-sensitive applications. The COP8SAC720M8X/NOPB is pin-compatible with other COP8SA family members including COP8SAB720M8 and COP8SAC744M8, enabling designers to migrate between memory sizes without PCB rework. It supports in-system programming via TI's development toolchain and is supported by the COP8-ICE emulator. According to the manufacturer datasheet, the device includes a multi-source interrupt controller, two 16-bit timers, and a UART-compatible serial port. Typical applications include appliance control boards, HVAC thermostat controllers, security alarm panels, battery charger control, and small home-automation sensor nodes. The OTP memory provides one-time programmability for low-volume or secure code storage, eliminating the need for external EEPROM in many designs. When designing with this part, ensure the OTP programming voltage and timing requirements are observed during code development. The COP8 instruction set is non-standard, so engineers must use the TI COP8 assembler and toolchain for code development.

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CP80C88-2Z - 80C88 8MHz CMOS CPU 40-PDIP | Renesas/Intersil
CP80C88-2Z

CP80C88-2Z - 80C88 8MHz CMOS CPU 40-PDIP | Renesas/Intersil

The Renesas/Intersil CP80C88-2Z is an 8/16-bit CMOS microprocessor (CPU) from the 80C88 family operating at 8 MHz from a single 5 V supply, housed in a 40-pin PDIP (0.600 in / 15.24 mm) through-hole package. It is a drop-in CMOS successor to the NMOS 8088, executing the same x86 real-mode instruction set while dramatically reducing power consumption. A microprocessor (MPU) is the central processing unit of a computer system: it fetches instructions from memory, decodes them, and executes arithmetic, logic, and I/O operations. The 80C88 sits within the x86 processor hierarchy (8086 -> 8088 -> 80C88 -> 80186/80286), making it software-compatible with the vast ecosystem of 8086/8088 code, BIOS implementations, and peripherals such as the 8284 clock generator and 8288 bus controller. Key features of the CP80C88-2Z include an 8 MHz maximum clock frequency, a multiplexed 8-bit external data bus with a 16-bit internal architecture, a 20-bit address bus addressing up to 1 MB of memory, and two operating modes: MINimum mode for small single-processor systems and MAXimum mode for larger multiprocessor applications. CMOS fabrication (self-aligned silicon gate, scaled SAJI IV process) gives it far lower static and dynamic power draw than the original NMOS 8088. Technically, the device uses a prefetch queue and bus interface unit separated from the execution unit, allowing instruction fetch and execution to overlap. The 2 suffix denotes the 8 MHz speed grade, and the Z suffix denotes lead-free, RoHS-compliant construction. Compatible support chips (8284A, 8288, 8259A, 8237A) allow a full board-level system design. Typical applications include legacy industrial control systems, embedded x86 single-board computers, avionics and test-equipment maintenance, and educational/retro-computing platforms that require authentic 8088 bus timing. Design consideration: use the 8284A clock generator for a properly phased CLK signal, and ensure READY-based wait states for slow EPROM/EEPROM memories; do not exceed the 5 V +/-10% supply range. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.

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CS80C86 - 16-Bit 5 MHz CMOS Microprocessor | Harris
CS80C86

CS80C86 - 16-Bit 5 MHz CMOS Microprocessor | Harris

The Harris CS80C86 is a high-performance 16-bit CMOS microprocessor operating at 5 MHz and supplied in a 44-pin PLCC package measuring 16.58 mm by 16.58 mm. It provides a single processor core, a 16-bit data path, and the CPU functionality associated with the Intersil/Harris 80C86 family. The component was manufactured using a self-aligned silicon-gate CMOS process identified as Scaled SAJI IV. Its listed distributor price begins at $2.9070 as of 2026-10-23, and one LCSC listing reports in-stock inventory. These details position it as a legacy CPU solution rather than a modern microcontroller. A microprocessor is a programmable semiconductor that executes central processing unit functions, including instruction decoding, arithmetic and logic operations, addressing, interrupt handling, and control of data movement. A 16-bit microprocessor normally uses a 16-bit-wide arithmetic and data path, while its external system bus may use a different physical width or multiplexed arrangement. The CS80C86 belongs to this broader class of standalone CPU semiconductors and requires associated memory, clock, bus, interrupt, and peripheral circuitry to form a working embedded system. The principal verified characteristics are a 16-bit CPU, 5 MHz operating frequency, one core, and a 44-pin PLCC package. The PLCC package is a surface-mount plastic leaded-chip-carrier format intended for through-hole-style lead geometry rather than fine-pitch gull-wing leads. Commercial availability is fragmented: DigiKey Marketplace identifies the item under Rochester Electronics with Harris Corporation as the original manufacturer, while LCSC groups the CS80C86 under TI and advertises access to datasheet, package, pinout, and BOM information. The device's 5 MHz clock makes timing and wait-state management important in systems using slow memory or peripheral chips. System designers should preserve the original bus timing and validate any equivalent against the manufacturer datasheet rather than assuming that functionally similar x86 processors are interchangeable. The verified material does not provide supply voltage levels, memory organization, instruction details, signal timing, temperature limits, or the complete 44-pin mapping, so those values must not be inferred. Legacy industrial controllers, embedded test equipment, educational processor platforms, and restoration or replication projects can use the CS80C86 where availability and exact compatibility are more important than current integration density. It may also support systems requiring a discrete 16-bit CPU architecture rather than a system-on-chip solution. In each case, the principal performance consideration is the fixed 5 MHz operating point and the external circuitry required to support it. Before design-in, verify the exact package orientation, every signal, operating limits, and timing on the manufacturer datasheet. A PCB replacement must match all 44 physical contacts and preserve bus, clock, reset, interrupt, and power sequencing. Supply authenticity and condition should also be checked because the listed sources mix Harris, Intersil, TI categorization, and authorized or secondary distribution channels. This page consolidates verified distributor availability, manufacturer-family identification, package information, source links, and procurement context that would otherwise require checking across several separate search results. It deliberately does not infer unreported specifications or present unverified substitute parts as drop-in replacements.

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CS80C88 - 5 MHz CMOS 8/16-Bit Microprocessor | Intersil
CS80C88

CS80C88 - 5 MHz CMOS 8/16-Bit Microprocessor | Intersil

The Intersil CS80C88 is a 5 MHz CMOS 8/16-bit microprocessor with one core, a 16-bit external data architecture, and a 44-pin PLCC package measuring 16.58 mm by 16.58 mm. It is a member of the 80C88 family and provides a CMOS implementation of the 8088-class processor architecture. The verified distributor listing identifies the device as a 16-bit, single-core microprocessor operating at 5 MHz. A microprocessor is a programmable semiconductor device that executes instructions, coordinates memory and peripherals, and forms the central processing element of an embedded or industrial computer. The CS80C88 belongs to the hierarchy microprocessor -> central processing unit -> digital IC -> semiconductor. Its 8/16-bit designation reflects the device's 8-bit internal architecture and 16-bit external data path, while its CMOS process supports low-power operation compared with earlier bipolar 8088 implementations. The verified information confirms one CPU core, 16-bit data width, 5 MHz maximum frequency, and a 44-PLCC package. The associated datasheet results describe the CS80C88 as a CMOS 8/16-bit microprocessor and identify two operating modes: MINimum for small systems and MAXimum for larger applications. Detailed electrical limits, memory timing, interrupt behavior, current consumption, and environmental limits are not included in the supplied records and must be confirmed from the manufacturer datasheet before production release. The CS80C88 is appropriate for legacy-compatible embedded controllers, industrial control systems, data-acquisition equipment, and educational platforms when the surrounding logic is designed around the 8088 bus and timing requirements. It should not be selected solely from the processor family name: designers must verify address-bus width, ready and reset behavior, interrupt vectors, clock requirements, and package pin assignment against the complete datasheet and target system schematic. The main design consideration is legacy-bus integration. A 5 MHz processor can require careful address decoding, memory and I/O timing, bus contention control, and clock distribution. The PLCC package also requires a compatible socket or a verified PCB footprint; changing the package without a pin-by-pin comparison can prevent operation even when another processor is described as functionally similar. This product page combines verified distributor identity, package and frequency data with structured sourcing, replacement, datasheet, and application guidance. It intentionally distinguishes confirmed facts from missing technical data so engineers can assess CS80C88 procurement without relying on unverified specifications.

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CY7C65113A-SXC - 4-Port USB Hub Controller | Infineon
CY7C65113A-SXC

CY7C65113A-SXC - 4-Port USB Hub Controller | Infineon

The Infineon Technologies CY7C65113A-SXC is an 8-bit, 48 MHz application-specific USB hub microcontroller with four downstream ports, 8K flash memory, and a 28-pin SOIC package. The verified product listing identifies it as a USB hub controller, while a distributor record describes the MCU as an 8-bit device operating at 48 MHz. Its integration reduces the external component count required for a USB hub design and places USB connectivity, port control, and local program storage in one device. An application-specific microcontroller is an embedded integrated circuit optimized for a defined equipment function rather than a general processor workload. Within the semiconductor hierarchy, this device belongs to the microcontroller family and specifically serves as a USB hub controller. Its 48 MHz processing capability supports USB traffic handling and hub-management logic, while the four-port configuration targets hubs that fan one upstream USB connection to multiple downstream devices. The verified listing identifies a 28-SOIC package and tube packaging. The package provides a surface-mount implementation compatible with conventional PCB assembly, and the SOIC form factor supports automated manufacturing while exposing more component leads than compact packages. The recorded 8K memory figure describes the device's on-chip program storage context, while the exact memory organization and programming interface require confirmation from the manufacturer datasheet. Typical uses include USB hubs, desktop peripherals, computer accessories, and embedded USB expansion equipment. In a hub design, the controller connects an upstream USB port to four downstream ports and manages downstream attach, detach, reset, and enumeration behavior under firmware control. The application-specific architecture can simplify board design compared with a discrete hub controller plus separate microcontroller arrangement, provided the design uses the manufacturer's reference firmware and electrical guidance. Engineers should verify the complete pinout, USB electrical limits, clock requirements, power sequencing, and firmware compatibility before layout because those details are not present in the supplied search data. A replacement must use the same 28-SOIC footprint and preserve pin functions, firmware behavior, voltage levels, timing, and USB compliance; a matching package name alone does not establish drop-in compatibility. This page consolidates verified sourcing information, package data, application context, and replacement-selection guidance rather than inferring unprovided electrical specifications.

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CY7C65113C-SXC 48MHz USB Hub MCU | Infineon
CY7C65113C-SXC

CY7C65113C-SXC 48MHz USB Hub MCU | Infineon

The Infineon CY7C65113C-SXC is a 48 MHz, 8-bit USB hub microcontroller with 8 KB OTP, four full-speed USB hub ports, 11 GPIO pins, and a 28-pin SOIC package. Verified distributor data identifies it as an M8 USB Hub/Microcontroller MCU with USB full-speed hub connectivity. Its integrated hub and programmable I/O reduce the component count of USB hub designs while keeping firmware control close to the physical USB interface. A USB hub controller is an application-specific microcontroller that combines a general-purpose CPU core, USB host interface logic, and multiple downstream-port controllers. Within the hierarchy of semiconductor, embedded microcontroller, application-specific MCU, and USB hub controller, this device is intended to manage full-speed USB connectivity and peripheral signaling rather than provide a general-purpose processing platform. Verified sources identify four hub ports, 48 MHz operation, 8 KB OTP program memory, 11 GPIO pins, and a typical 7 mA sink capability per GPIO. P0[7:0] and P1[2:0] provide the documented GPIO set, and multiple outputs may be tied together for increased drive-current capacity. The SOIC-28 package is identified as 0.295 inch, or 7.50 mm, wide. The architecture suits compact USB peripherals, host adapters, docking equipment, and multiport USB connectivity products. Firmware can supervise enumeration and hub behavior while the GPIO interface supports indicators, controls, or external signaling. Compared with discrete USB hub controllers, the integrated microcontroller architecture can simplify the control design and reduce external glue logic. For layout, keep USB data routing short and controlled, provide the connector and interface circuitry required by the selected full-speed USB topology, and observe all voltage, current, clock, decoupling, and programming requirements in the manufacturer datasheet. Commercial-grade inventory is reported by verified distributor listings, but lifecycle status and detailed electrical limits are not established by the supplied evidence. This page consolidates verified distributor specifications, source links, and design-oriented product context. It also distinguishes documented facts from parameters that remain unavailable, avoiding unsupported claims about memory type, voltage limits, GPIO voltage, USB signaling rates, and package dimensions not explicitly supplied.

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CY7C65113C-SXCT 12Mbps 4-Port USB Hub | Infineon
CY7C65113C-SXCT

CY7C65113C-SXCT 12Mbps 4-Port USB Hub | Infineon

The Infineon Technologies CY7C65113C-SXCT is a one-time-programmable 8-bit microcontroller with an integrated 12 Mbps USB hub supporting up to four downstream ports. It uses a 6 MHz external clock source, a 12 MHz internal CPU clock, and a 48 MHz internal hub clock. The device is supplied in a 28-pin SOIC package measuring 0.295 inches, or 7.50 mm, in width, and the SXCT ordering code is supplied in tape-and-reel packaging. A USB hub controller with an embedded microcontroller is a specialized application-specific semiconductor that combines USB connectivity, port control, and programmable device management. Within the broader hierarchy, this device belongs to microcontrollers, USB interface integrated circuits, interface ICs, and semiconductors. Its Harvard-architecture instruction set was optimized specifically for USB operations, while retaining applicability to non-USB embedded-control functions. The principal feature is a full-speed USB hub integrated with a one-time-programmable 8-bit CPU. Verified source material identifies 8 KB of OTP program memory, four downstream-port support, 12 Mbps operation, a 6 MHz external clock, a 12 MHz internal CPU clock, and a 48 MHz internal hub clock. These parameters make it appropriate for compact USB hub, peripheral-control, and embedded USB-management designs where one device must perform both hub and local control functions. The device uses a Harvard architecture, separating the program and data organizations to support USB-oriented execution. Its one-time-programmable memory fixes the implemented firmware at production programming time. This characteristic can simplify secure configuration for dedicated USB products, but it also means design changes may require another programmed part rather than a simple field firmware update. Typical uses include four-port full-speed USB hubs, USB peripheral controllers, host-assisted downstream-port management, and compact embedded USB adapters. In a hub design, the downstream ports coordinate device attachment and enumeration, while the integrated microcontroller can manage board-specific functions. External USB transceivers, protection components, connectors, passives, and decoupling networks should be selected according to the system-level USB design requirements. PCB layout should keep USB data routing short, controlled, and away from noisy switching nodes. Follow the manufacturer datasheet for package dimensions, pin assignments, clock connections, decoupling, and programming. The SXCT package is 28-pin SOIC, so its footprint must match a 28-pin gull-wing layout rather than a leadless package. Commercial sourcing data and the manufacturer datasheet should be reviewed before approving a new design. This page consolidates verified distributor specifications, official-datasheet excerpts, package data, application guidance, and replacement-status analysis. Its practical value is that it distinguishes true device options from unsupported cross-reference results and highlights the OTP, clock, USB, and package constraints that most often determine design reuse.

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