C8051F344-GQ

Overview

The C8051F344-GQ is a high-speed 8-bit microcontroller from the Silicon Labs C8051F34x family, featuring a pipelined CIP-51 core operating at up to 48 MIPS. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of RAM. The device includes a full-speed USB 2.0 function controller with an integrated transceiver and on-chip clock recovery, eliminating the need for external crystals or resistors. Digital peripherals consist of hardware-enhanced SPI, SMBus, two UARTs, four 16-bit timers, and a 16-bit PCA. The unit operates within a voltage range of 2.7 V to 5.25 V and supports industrial temperatures from -40 °C to +85 °C.

Feature Summary

• Integrated full-speed USB 2.0 function controller with built-in transceiver and clock recovery
• High-performance CIP-51 8051-compatible core executing instructions in one or two system clocks
• On-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Flexible digital I/O with a priority crossbar decoder allowing configurable peripheral pin mapping

Applications

• Embedded USB connectivity solutions
• Industrial control systems
• Point-of-sale terminals
• Medical diagnostic equipment

Procurement Notes

Verify the specific suffix GQ corresponds to the 32-pin LQFP package variant as defined in the official datasheet. Confirm that the component meets RoHS compliance standards required for your manufacturing process. Ensure the design accommodates the specified voltage supply input range of 2.7 V to 5.25 V. Check for any end-of-life notices or obsolescence warnings associated with this part number before finalizing procurement plans.

Selection Notes

Select the C8051F344-GQ when a design requires a balance of processing speed and extensive analog/digital peripheral integration. This model is suitable for applications needing dual UARTs and a robust USB interface without external components. Consider alternative members of the C8051F34x family if different memory sizes, package types, or specific analog features like ADC resolution are required.

Part Context

This component belongs to the C8051F34x Full Speed USB Flash MCU Family produced by Silicon Laboratories. The series provides single-chip solutions for embedded USB applications by combining a fast 8051 core with comprehensive on-chip resources. The family utilizes a Harvard architecture and offers various package options including TQFP, LQFP, and QFN to suit different board space constraints.

Replacement Considerations

Other devices within the C8051F34x family may serve as functional substitutes depending on memory and package requirements.