C8051F303-GS

Overview

The C8051F303-GS is a mixed-signal ISP Flash MCU from Silicon Labs, part of the C8051F30x family. It features a high-speed pipelined 8051 core delivering up to 25 MIPS at 25 MHz. The device includes 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. Key peripherals include a hardware-enhanced UART, SMBus interface, three 16-bit counter/timers, and a Programmable Counter Array with capture/compare modules. It operates on a supply voltage of 2.7 to 3.6 V and supports an internal oscillator with ±2% accuracy.

Feature Summary

• Integrated on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Programmable digital I/O architecture allowing flexible mapping of internal digital resources to physical pins via software configuration.
• Hardware-enhanced serial communication interfaces including UART and SMBus for reliable data transfer.
• Supports seamless switching between clock sources, facilitating power-saving modes and system flexibility.

Applications

• Motor control systems
• Industrial equipment monitoring
• Consumer electronics devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches design requirements, as the series offers both QFN and SOIC options. Check revision status, as this family is marked Not Recommended for New Designs. Ensure development tools like Simplicity Studio are compatible with the specific silicon revision.

Selection Notes

Select this model when a compact mixed-signal solution with integrated analog peripherals is required. The C8051F303 variant specifically lacks the ADC found in the F300/F302 models but retains the comparator. Consider the 11-pin QFN or 14-pin SOIC packages based on board space constraints. Evaluate the 25 MIPS throughput against application processing demands.

Part Context

This component belongs to the C8051F30x series of fully integrated System-on-Chip microcontrollers. The series is designed for applications requiring high performance and low power consumption in a small footprint. It utilizes the CIP-51 core, which offers improved instruction execution speed compared to standard 8051 architectures while maintaining compatibility.

Replacement Considerations

Public confirmed substitute part numbers: C8051F300, C8051F301, C8051F302, C8051F304, C8051F305.