C8051F850-C-GU

Overview

The C8051F850-C-GU is an 8-bit microcontroller from the C8051F85x 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, four 16-bit timers, and a Programmable Counter Array. Communication interfaces include UART, I2C/SMBus, and SPI. It operates on a 2.2 V to 3.6 V supply and supports –40 °C to +85 °C temperature range.

Feature Summary

• High-performance pipelined CIP-51 core compatible with standard 8051 instruction set
• Integrated mixed-signal peripherals including 12-bit ADC and analog comparators
• Flexible digital I/O with priority crossbar decoder for dynamic pin mapping
• On-chip debug circuitry enabling full-speed non-intrusive system debugging

Applications

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

Procurement Notes

Verify component status as this model may be marked Not Recommended for New Designs. Confirm package type matches QSOP-24 specifications. Check for valid AEC-Q100 qualification if automotive standards are required. Ensure ordering suffixes align with specific temperature grades and packaging requirements before procurement.

Selection Notes

Select this MCU for applications requiring a cost-effective 8-bit solution with integrated analog capabilities. The CIP-51 architecture offers significant speed improvements over traditional 8051 cores. Consider the available communication interfaces and timer configurations against project requirements. Evaluate power consumption modes if battery operation is critical.

Part Context

This component belongs to the Silicon Labs C8051F85x/86x low-cost 8-bit MCU family. These devices are designed as highly integrated mixed-signal system-on-chip solutions. The family emphasizes ease of development through on-chip debug features and compatibility with standard 8051 toolchains.

Replacement Considerations

Public confirmed substitute part numbers: EFM8BB51F8G-C-TSSOP20R.