C8051F850-C-GM

Overview

The C8051F850-C-GM is a low-cost 8-bit mixed-signal 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 within a compact 3x3 mm QFN-20 package. 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 at 2.2 V to 3.6 V, it supports commercial temperature ranges from -40 °C to +85 °C.

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
• Flexible GPIO architecture enabled by priority crossbar routing
• On-chip debug circuitry for non-intrusive system-level debugging

Applications

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

Procurement Notes

Verify component status as Not Recommended for New Designs (NRND). Confirm specific ordering suffixes match required package and temperature grades. Ensure compatibility with existing designs due to end-of-life classification. Validate supply voltage and operating temperature ranges against application requirements before procurement.

Selection Notes

Select this MCU for applications requiring a fully integrated mixed-signal solution with minimal external components. The CIP-51 core offers efficient execution while maintaining 8051 software compatibility. Consider the available Flash size and peripheral set against project constraints. Evaluate the QFN-20 package dimensions for space-constrained PCB layouts.

Part Context

This component belongs to the C8051F85x/86x family of low-cost 8-bit MCUs produced by Silicon Labs. The series emphasizes high integration by combining digital processing capabilities with essential analog peripherals on a single chip. This approach reduces bill-of-materials complexity and simplifies hardware design for embedded systems.

Replacement Considerations

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