C8051F302R

Overview

The C8051F302R is an 8-bit mixed-signal ISP Flash microcontroller from Silicon Labs, part of the C8051F30x family. It features a high-speed CIP-51 core operating at up to 25 MHz with 25 MIPS throughput. The device includes 8 kB of in-system programmable Flash memory and 256 bytes of internal RAM. Key analog peripherals include an 8-bit ADC supporting up to 500 ksps with eight external inputs and a low-current comparator. Digital interfaces comprise hardware-enhanced UART and SMBus ports. It operates on a 2.7 V to 3.6 V supply within a -40°C to +85°C temperature range.

Feature Summary

• Integrated 8-bit ADC with programmable gain amplifier and built-in temperature sensor
• Hardware-enhanced UART and SMBus serial communication ports
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging
• Pipelined instruction architecture for improved execution speed

Applications

• Industrial control systems
• Consumer electronics
• Motor control applications
• Medical devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Check current lifecycle status, as this model may be marked Not Recommended for New Designs. Ensure package type matches design requirements before procurement.

Selection Notes

Select this MCU for applications requiring integrated analog capabilities alongside standard digital processing. The inclusion of an 8-bit ADC and comparator reduces external component count. Consider the 11-pin QFN package size constraints during PCB layout. Evaluate power consumption profiles against system battery life requirements.

Part Context

This component belongs to the C8051F30x series of mixed-signal microcontrollers. It shares architectural similarities with siblings like the C8051F300 and C8051F301 but differs in specific peripheral configurations such as ADC resolution and memory size. The series utilizes the CIP-51 core for enhanced performance over traditional 8051 architectures.

Replacement Considerations

Consult official Silicon Labs documentation for verified substitute part numbers. Cross-reference pinouts and peripheral sets when evaluating alternatives.