C8051F852-C-GU

Overview

The C8051F852-C-GU is an automotive-grade, low-cost 8-bit microcontroller from Silicon Labs. It features a high-speed CIP-51 core operating at up to 25 MHz (25 MIPS). The device includes 4 kB of in-system programmable Flash memory and 256 bytes of RAM. Integrated peripherals include a 12-bit ADC with up to 16 channels, two analog comparators, four 16-bit timers, and communication interfaces such as UART, I2C/SMBus, and SPI. It operates within a supply voltage range of 2.2 V to 3.6 V and supports the -40 °C to +85 °C temperature range.

Feature Summary

• High-performance CIP-51 core with pipelined architecture for efficient instruction execution
• 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 with 5 V tolerance and digital crossbar routing

Applications

• Automotive embedded control systems
• Industrial monitoring and data acquisition
• Low-latency sensor processing applications

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the specific ordering suffix matches the required package type and temperature grade. Check for current lifecycle status notifications, as this model may be subject to discontinuation or design replacement recommendations.

Selection Notes

Evaluate the 4 kB Flash capacity against application code size requirements. Ensure the 256-byte RAM suffices for variable storage needs. Verify that the 2.2 V to 3.6 V supply range aligns with the target power architecture. Confirm compatibility with existing development tools for the CIP-51 core.

Part Context

This component belongs to the C8051F85x/86x family of mixed-signal microcontrollers. These devices are designed for cost-sensitive applications requiring high integration. The series combines standard 8051 compatibility with modern peripheral sets, targeting markets where board space and bill-of-materials costs are critical constraints.

Replacement Considerations

Silicon Labs recommends transitioning to newer families for new designs. Potential substitutes include the EFM8BB5 series, which offers updated features and continued support.