C8051F343-GQ

Overview

The C8051F343-GQ is an 8-bit microcontroller from the Silicon Labs C8051F34x family, featuring a high-speed 8051 core with up to 48 MIPS performance. It integrates 32 kB of in-system programmable Flash memory and 2304 bytes of RAM. The device includes a full-speed USB 2.0 function controller with an integrated transceiver and clock recovery, eliminating the need for external components. Analog peripherals consist of a 10-bit ADC supporting up to 200 ksps, two comparators, and a temperature sensor. Digital interfaces include SPI, SMBus, and dual UARTs. It operates on a voltage supply of 2.7 V to 5.25 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a full-speed USB 2.0 function controller with an internal transceiver and clock recovery circuitry.
• Features a pipelined 8051 CPU core capable of executing instructions in one or two system clocks.
• Includes a 10-bit analog-to-digital converter with built-in multiplexer and programmable window detector.
• Provides comprehensive digital communication interfaces including hardware-enhanced SPI, SMBus, and dual UARTs.

Applications

• Embedded USB connectivity solutions
• Medical diagnostic equipment
• Point-of-sale terminals
• Voice over Internet Protocol telephones

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific package type matches design requirements. Check for current lifecycle status as this series may be marked not recommended for new designs. Ensure environmental compliance documentation aligns with target market regulations.

Selection Notes

Select this model when a compact 32-pin solution is required alongside USB capabilities. Compare memory sizes against application needs, noting the 32 kB Flash variant. Evaluate pin count availability for I/O expansion versus other family members. Consider the operating voltage range compatibility with existing power rails.

Part Context

This component belongs to the C8051F34x Full Speed USB Flash MCU Family. It shares architectural similarities with siblings like the C8051F340 and C8051F342 but differs in memory capacity and package options. The family emphasizes single-chip integration for USB applications, reducing bill of materials by incorporating necessary analog and digital peripherals directly onto the silicon die.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Silicon Labs resources for cross-reference information.