C8051F850-B-GM

Overview

The C8051F850-B-GM is a mixed-signal 8-bit microcontroller featuring the high-speed CIP-51 core with up to 25 MHz throughput. 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, four 16-bit timers, and communication peripherals including UART, SPI, and I2C/SMBus. Operating within a 2.2 V to 3.6 V supply range, it utilizes a 20-pin QFN package.

Feature Summary

• High-performance pipelined CIP-51 core compatible with standard 8051 instruction sets
• Integrated 12-bit Analog-to-Digital Converter supporting multiple input channels
• On-chip debug circuitry enabling full-speed non-intrusive system debugging
• Flexible general-purpose I/O pins with 5 V tolerance and crossbar routing

Applications

• Battery chargers
• Electronic toys and games
• Motor control systems
• Optical communications

Procurement Notes

Verify the specific suffix 'B' against official Silicon Labs documentation, as datasheets typically list '-GM', '-GS', or '-GU'. Confirm current lifecycle status, as this family is marked Not Recommended for New Designs. Ensure compatibility with existing PCB footprints and validate that the temperature grade matches application requirements before procurement.

Selection Notes

Select this component for applications requiring a highly integrated 8-bit MCU with mixed-signal capabilities. The CIP-51 core offers efficient execution while maintaining software compatibility with legacy 8051 codebases. Consider the on-chip debug features to streamline development cycles and the extensive peripheral set to reduce external component count in compact designs.

Part Context

This part belongs to the C8051F85x/86x family of low-cost 8-bit MCUs from Silicon Labs. These devices are designed as complete system-on-chip solutions, integrating essential analog and digital peripherals alongside the microcontroller core. The series supports various package options and temperature ranges to accommodate diverse industrial and commercial environments.

Replacement Considerations

Consult official Silicon Labs documentation for confirmed substitute part numbers within the C8051F85x/86x family. Verify pinout and functional equivalence when considering alternatives due to the 'Not Recommended for New Designs' status.