C8051F301-GSR

Overview

The C8051F301-GSR is a mixed-signal ISP Flash MCU from Silicon Labs, featuring a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It includes 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. The device operates on a supply voltage of 2.7 to 3.6 V and supports a temperature range of –40 to +85 °C. Available in 11-pin QFN or 14-pin SOIC packages, it integrates digital peripherals such as UART, SMBus, timers, and a Programmable Counter Array alongside analog features including a comparator and temperature sensor.

Feature Summary

• On-chip debug circuitry facilitates full speed, non-intrusive in-system debugging without requiring external emulation hardware.
• Integrated high-speed 8051 microcontroller core executes instructions efficiently with pipelined architecture.
• Supports in-system programming of Flash memory for field upgrades and non-volatile data storage.

Applications

• Embedded control systems requiring direct in-circuit firmware updates
• Low-power applications utilizing stop mode current characteristics
• Systems interfacing via SMBus or UART serial communication protocols

Procurement Notes

Verify the specific package variant (QFN-11 or SOIC-14) required for your design, as the suffix indicates the package type. Confirm that the component meets RoHS compliance standards if applicable to your manufacturing requirements. Ensure the operating voltage range aligns with your system's power supply specifications before finalizing procurement.

Selection Notes

Select this component when an 8-bit mixed-signal MCU with integrated Flash and debug capabilities is needed. It is suitable for designs prioritizing low pin count and cost-effective development through in-system programming. Consider alternative models within the family if higher Flash capacity or additional analog peripherals are required.

Part Context

This part belongs to the C8051F30x series of mixed-signal ISPs Flash MCUs by Silicon Labs. The series is characterized by fully static operation and high integration of analog and digital peripherals on a single chip. These devices are designed to simplify system design by reducing component count and board space requirements.

Replacement Considerations

Direct substitutes include other members of the C8051F30x family, such as the C8051F300, C8051F302, or C8051F303, provided they match the required package and peripheral configuration. Verify code compatibility and pinout alignment when transitioning between variants.