C8051F861-C-IS

Overview

The C8051F861-C-IS is an 8-bit microcontroller from the Silicon Labs C8051F85x/86x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 512 Bytes of RAM. The device includes a 12-bit ADC with up to 16 channels, two analog comparators, and multiple communication peripherals including UART, I2C/SMBus, and SPI. It operates on a supply voltage of 2.2 to 3.6 V and is housed in a 16-pin SOIC package.

Feature Summary

• High-performance CIP-51 core with pipelined architecture for efficient instruction execution
• Integrated 12-bit ADC supporting up to 16 input channels and configurable reference options
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Flexible I/O configuration via digital crossbar allowing dynamic pin-to-peripheral assignment

Applications

• Low-cost motor control applications
• Industrial process control systems
• Consumer electronics requiring mixed-signal processing
• Battery-powered devices utilizing low-power modes

Procurement Notes

Verify the complete part number including suffixes such as -IS to confirm industrial temperature range and package type. Confirm RoHS compliance status and check for Not Recommended for New Designs (NRND) notices in current documentation. Ensure ordering specifications match required voltage ranges and operating temperatures for the target application environment.

Selection Notes

Select this component when a cost-effective 8-bit MCU with integrated analog peripherals is required. The C8051F861 variant offers maximum Flash capacity within its series. Consider the 16-pin SOIC package for space-constrained designs. Evaluate power consumption requirements against available internal oscillators and low-power modes before finalizing the selection.

Part Context

This device belongs to the C8051F85x/86x family of low-cost 8-bit MCUs designed for high integration. It shares architectural similarities with other C8051F series parts but focuses on reducing bill-of-materials costs through peripheral consolidation. The family utilizes the CIP-51 core, offering compatibility with standard 8051 toolchains while providing enhanced performance and mixed-signal capabilities on a single chip.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.