C8051F301

Overview

The C8051F301 is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring a high-speed 8051 core with up to 25 MIPS throughput at 25 MHz. It integrates 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 an industrial temperature range of –40 to +85 °C. Key peripherals include hardware-enhanced UART and SMBus serial ports, three general-purpose 16-bit counter/timers, and a 16-bit Programmable Counter Array (PCA).

Feature Summary

• Features a fully 8051 compatible CIP-51 core with pipelined architecture for improved instruction execution speed.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Supports flexible digital I/O mapping through a programmable crossbar configuration.
• Integrates a calibrated internal oscillator with ±2% accuracy suitable for UART operation.

Applications

• Infrared remote control systems
• Consumer electronics controllers
• Industrial process control devices
• Motor control applications

Procurement Notes

Verify the specific package variant required, as the C8051F301 is available in both 11-pin QFN and 14-pin SOIC configurations. Confirm that the selected component meets the necessary environmental specifications for the intended operating temperature range. Ensure compatibility with existing development tools and programming interfaces before finalizing procurement decisions.

Selection Notes

Select the C8051F301 when an 8051-compatible architecture with integrated analog peripherals is required. This model is appropriate for designs needing in-system programming capabilities and low-power operation modes. Consider alternative models within the family if higher Flash capacity or additional ADC channels are necessary for the application requirements.

Part Context

The C8051F301 belongs to the C8051F30x series of mixed-signal microcontrollers produced by Silicon Laboratories. This family is characterized by its fully integrated system-on-a-chip design, combining a high-speed MCU core with extensive on-chip memory and peripheral functions. The series targets cost-sensitive embedded applications requiring robust performance and flexibility.

Replacement Considerations

The C8051F300, C8051F302, C8051F303, C8051F304, and C8051F305 are pin-compatible members of the same family. These variants offer differences in Flash size or the presence of an 8-bit ADC. Verify functional equivalence regarding peripheral availability and memory capacity during substitution planning.