C8051F301-GM

Overview

The C8051F301-GM is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring a high-speed 8051 core operating at up to 25 MHz. It provides 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. The device integrates hardware-enhanced UART and SMBus serial ports, three general-purpose 16-bit counter/timers, and a 16-bit Programmable Counter Array with capture/compare modules. It operates on a supply voltage range of 2.7 V to 3.6 V within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Features a pipelined 8051 architecture delivering up to 25 MIPS throughput with instruction execution optimized for 1 or 2 system clocks.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulation hardware.
• Supports flexible digital I/O mapping through a programmable crossbar that allows software configuration of peripheral pin assignments.

Applications

• Industrial control systems requiring robust serial communication interfaces
• Consumer electronics utilizing compact mixed-signal processing capabilities
• Motor control applications leveraging timer and PCA resources

Procurement Notes

Verify the component status before procurement as this specific part number is marked Not Recommended for New Designs. Confirm availability through authorized distributors and check for potential end-of-life notices or recommended alternative replacements within the same family. Ensure design reviews account for the discontinued status if integrating into new products.

Selection Notes

Select this component when a fully integrated mixed-signal solution with on-chip debug is required for space-constrained designs. It is suitable for applications needing precise timing via multiple timers and PCA modules alongside standard serial communication protocols. Consider the package options available for the series when evaluating board layout constraints.

Part Context

This microcontroller belongs to the C8051F30x family, which shares common architectural features such as the CIP-51 core and similar peripheral sets. Variants within this family differ primarily in Flash memory size and analog peripheral configurations, such as the presence or absence of an 8-bit ADC. The C8051F301 specifically omits the ADC found in the C8051F300 variant.

Replacement Considerations

Consult official documentation for current replacement recommendations due to the Not Recommended for New Designs status. Evaluate compatible members of the C8051F30x family or newer Silicon Labs MCU generations that maintain pin compatibility and functional equivalence.