C8051F125-GQ

Overview

The C8051F125-GQ is an 8-bit microcontroller from the Silicon Labs C8051F12x/13x family, featuring a pipelined CIP-51 core with 100 MIPS throughput. It includes 128 kB of in-system programmable Flash memory and 8448 bytes of internal data RAM. The device integrates a 12-bit SAR ADC with up to 8 external inputs and a programmable gain amplifier. Digital peripherals consist of hardware SMBus, SPI, two UARTs, and multiple timers. It operates within a voltage range of 2.7–3.6 V at 50 MIPS or 3.0–3.6 V at 100 MIPS, housed in a 100-pin TQFP package.

Feature Summary

• High-speed pipelined CIP-51 architecture delivering up to 100 MIPS performance
• Integrated 12-bit SAR ADC with programmable gain amplifier and windowed interrupt generator
• On-chip JTAG debug circuitry supporting full-speed non-intrusive in-circuit debugging
• Hardware serial interfaces including SMBus, SPI, and dual UARTs available concurrently

Applications

• Industrial control systems requiring high-speed processing
• Power electronics applications utilizing integrated analog peripherals
• Communication equipment needing concurrent serial interface support

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status for environmental regulations. Check datasheet revision history for any electrical characteristic updates. Ensure packaging matches the specified 100-pin TQFP form factor. Validate that the specific suffix corresponds to the required temperature and voltage specifications.

Selection Notes

Select this component for designs requiring high-performance 8-bit processing with extensive on-chip analog capabilities. Consider the 128 kB Flash capacity for complex firmware requirements. Evaluate the 100-pin TQFP package constraints against PCB layout limitations. Note that the device is Not Recommended for New Designs; assess long-term supply availability before finalizing the design.

Part Context

This part belongs to the C8051F12x/13x series of mixed-signal System-on-Chip microcontrollers. These devices are designed to integrate high-speed digital processing with precision analog functions. The series utilizes a fully 8051-compatible instruction set while offering significantly improved throughput compared to standard architectures. They target applications demanding both computational power and signal conditioning.

Replacement Considerations

Public confirmed substitute part numbers: None.