C8051F34D-GQR

Overview

The C8051F34D-GQR is an 8-bit mixed-signal System-on-Chip microcontroller from the Silicon Labs C8051F34x family. It features a high-speed pipelined 8051 core operating at up to 25 MIPS, paired with 32 kB of in-system programmable Flash memory and 2304 bytes of RAM. The device integrates a USB 2.0 function controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation with an integrated transceiver and clock recovery. Digital peripherals include two enhanced UARTs, SPI, SMBus, four 16-bit timers, and a Programmable Counter Array. It 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

• Integrates a USB 2.0 function controller with built-in transceiver and on-chip clock recovery for simplified connectivity.
• Features a high-performance 8051-compatible core with pipelined architecture for efficient instruction execution.
• Includes comprehensive digital communication interfaces such as dual UARTs, SPI, and SMBus.
• Provides non-invasive on-chip debug capabilities allowing full-speed in-system debugging without external emulators.

Applications

• PC peripherals requiring embedded USB connectivity
• Point-of-sale terminals
• Embedded modems
• 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 cost-effective solution with integrated USB functionality is required. Consider the 32 kB Flash capacity against application firmware size. Verify that the 25 MIPS performance meets real-time processing needs. Evaluate the available I/O pins and peripheral count against system interface requirements.

Part Context

This component belongs to the C8051F34x Full Speed Flash MCU family. It shares architectural similarities with other members like the C8051F340 and C8051F349 but differs in memory configuration and package options. The family targets applications needing robust analog and digital integration alongside standard USB protocols.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult official Silicon Labs documentation for updated recommendations or next-generation alternatives.