C8051F852-C-GMR

Overview

The C8051F852-C-GMR 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 input channels, two analog comparators, four 16-bit timers, and a Programmable Counter Array. Communication interfaces include UART, I2C/SMBus, and SPI. Operating voltage ranges from 2.2 V to 3.6 V, with a commercial temperature range of -40°C to +85°C.

Feature Summary

• High-speed 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 non-intrusive in-system debugging
• Flexible crossbar-enabled General-Purpose I/O with 5 V tolerance

Applications

• Industrial control systems requiring robust 8-bit processing
• Sensor interface modules utilizing integrated ADC and comparators
• Embedded communication nodes using UART, SPI, or SMBus protocols

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the QFN-20 variant requires careful handling during inspection. Ensure compliance with RoHS directives if applicable to your assembly process. Cross-reference ordering suffixes against official datasheets to validate specific temperature grades and packaging configurations before finalizing procurement orders.

Selection Notes

Evaluate system requirements against the 25 MHz maximum clock speed and 8 kB Flash capacity. Consider the 2.2 V to 3.6 V supply voltage range for power budgeting. Assess peripheral needs such as the number of available ADC channels and timer counts. Verify that the commercial temperature range meets environmental constraints. Review the pinout compatibility if replacing existing designs within the C8051F85x family.

Part Context

This component belongs to the C8051F85x/86x low-cost 8-bit MCU family by Silicon Labs. It utilizes the CIP-51 architecture, offering enhanced performance over traditional 8051 cores while maintaining software compatibility. The series is designed for mixed-signal applications, integrating significant on-chip peripherals to reduce external component count and simplify board design.

Replacement Considerations

Consult the official C8051F85x/86x datasheet for confirmed substitute part numbers within the same family. Verify pinout and register compatibility when migrating between variants. Note that this specific model is designated as Not Recommended for New Designs; evaluate long-term availability implications.