C8051F855-C-GU

Overview

The C8051F855-C-GU is an 8-bit microcontroller from the Silicon Labs C8051F85x family, featuring a high-speed CIP-51 core operating at up to 25 MHz. It integrates 2 kB of in-system programmable Flash memory and 256 bytes of RAM within a 24-pin QSOP package. 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. It operates on a supply voltage of 2.2 V to 3.6 V.

Feature Summary

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

Applications

• Industrial control systems requiring robust 8-bit processing
• Battery-powered devices utilizing low-power oscillator modes
• Motor control applications leveraging PCA PWM capabilities
• Sensor interface circuits using integrated ADC and comparators

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches required package and temperature grade specifications. Review the official datasheet for any errata or design warnings associated with this part number prior to implementation.

Selection Notes

Select this component for designs prioritizing cost-effective mixed-signal integration within a compact QSOP footprint. Ensure the 2 kB Flash capacity meets application code requirements. Verify that the 2.2 V to 3.6 V supply range aligns with the target power architecture and that the 25 MHz clock speed satisfies real-time processing constraints.

Part Context

This MCU belongs to the C8051F85x/86x family, which provides low-cost 8-bit solutions with up to 8 kB of Flash. The series emphasizes high integration by combining digital peripherals with analog functions like ADC and comparators on a single chip. It utilizes the standard 8051 instruction set while offering enhanced performance through the CIP-51 core architecture.

Replacement Considerations

Public confirmed substitute part numbers: None identified.