C8051F002R

Overview

The C8051F002R is a mixed-signal System-on-Chip microcontroller from Silicon Labs, featuring an 8-bit CIP-51 CPU core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 32 KB of ISP Flash memory and 256 bytes of internal SRAM. The device includes a 12-bit SAR ADC with programmable gain amplifier, two 12-bit DACs, analog comparators, and a voltage reference. Digital peripherals include SMBus, SPI, UART, PCA, and four general-purpose timers. It operates on a 2.7V to 3.6V supply within a -40°C to +85°C temperature range.

Feature Summary

• High-speed pipelined 8051-compatible core executing most instructions in one or two system clocks
• On-chip JTAG debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• Integrated analog peripherals including a 12-bit ADC with programmable window detector and dual 12-bit DACs
• Hardware serial ports (SMBus, SPI, UART) available concurrently with configurable digital I/O crossbar

Applications

• Data acquisition systems requiring high-resolution analog-to-digital conversion
• Industrial control applications utilizing concurrent digital communication interfaces
• Embedded systems needing integrated in-system programming and debugging capabilities
• Portable instrumentation powered by low-voltage supplies

Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging configuration as per manufacturer documentation. Confirm RoHS compliance status and end-of-life notifications through official Silicon Labs channels before procurement. Ensure the selected package variant matches the required pinout for the target PCB layout.

Selection Notes

Select this component when a highly integrated mixed-signal solution is required alongside standard 8051 software compatibility. Consider the 256-byte RAM limitation compared to larger variants if complex data structures are needed. Evaluate the 12-bit ADC resolution against application requirements versus lower-resolution alternatives in the family.

Part Context

This part belongs to the C8051F00x/01x series of mixed-signal MCUs. These devices share a common architecture featuring the CIP-51 core and extensive on-chip analog peripherals. Variants within this family differ primarily in RAM size, ADC resolution, and available GPIO count while maintaining identical core functionality and peripheral sets.

Replacement Considerations

Consult Silicon Labs documentation for officially recommended replacements due to potential end-of-life status. Verify functional equivalence regarding pinouts, memory sizes, and peripheral availability before substitution.