C8051F300-GS

Overview

The C8051F300-GS is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8051-compatible core with up to 25 MHz operation. It integrates 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. The device includes an 8-bit ADC with up to 8 external inputs, a comparator, three general-purpose timers, and a Programmable Counter Array. Communication interfaces consist of hardware-enhanced UART and SMBus ports. Operating voltage ranges from 2.7 V to 3.6 V, supporting temperatures from -40 °C to +85 °C. Available in 11-pin QFN or 14-pin SOIC packages.

Feature Summary

• Fully integrated mixed-signal system-on-chip with high-speed 8051 core
• On-chip debug circuitry for non-intrusive in-system debugging
• Hardware-enhanced UART and SMBus serial communication ports
• Programmable digital I/O crossbar for flexible pin configuration

Applications

• In-system programming applications requiring on-chip code modification
• Low-power embedded systems utilizing stop mode current reduction
• Sensor interface circuits using the integrated temperature sensor and ADC
• Industrial control devices operating within extended temperature ranges

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches design requirements, as both QFN and SOIC variants exist within the family. Check revision status, as this series is marked Not Recommended for New Designs. Ensure supply chain stability due to potential end-of-life constraints affecting long-term production viability.

Selection Notes

Select this component when legacy 8051 compatibility is required alongside mixed-signal capabilities. Consider the specific peripheral set, noting that the 8-bit ADC is unique to the F300/2 variants within the family. Evaluate power consumption profiles against application needs, particularly regarding active and stop mode currents. Verify package availability and footprint compatibility during initial design phases.

Part Context

This part belongs to the C8051F30x family of mixed-signal ISPs. It shares architectural similarities with other members like the C8051F301 but differs in analog peripherals. The family emphasizes full silicon testing and in-system programmability. Development tools include Simplicity Studio and Keil C51 compilers. The CIP-51 core provides improved throughput compared to standard 8051 implementations.

Replacement Considerations

Public confirmed substitute part numbers: C8051F860-C-GS.