C8051F853-C-GUR

Overview

The C8051F853-C-GUR is an 8-bit microcontroller from Silicon Labs, part of the C8051F85x family. It features a CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. The device includes 8 kB of in-system programmable Flash memory and 512 Bytes of RAM. It lacks an on-chip ADC but provides two analog comparators. Communication interfaces include UART, I2C/SMBus, and SPI. It operates within a supply voltage range of 2.2 V to 3.6 V and supports industrial temperature ranges.

Feature Summary

• High-speed CIP-51 microcontroller core with pipelined instruction architecture
• In-system programmable Flash memory organized in 512-byte sectors
• Integrated analog comparators with programmable hysteresis and response time
• Flexible crossbar-enabled general-purpose I/O pins

Applications

• Industrial control systems requiring robust 8-bit processing
• Sensor interface modules utilizing analog comparators
• Embedded applications needing UART, SPI, or I2C connectivity
• Battery-powered devices benefiting from low-power oscillator modes

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix indicates the correct package and temperature grade. Check for end-of-life status as this family may be discontinued. Ensure compatibility with existing design tools and debuggers. Review datasheet revisions for any errata affecting implementation.

Selection Notes

Select this model when 8 kB Flash and 512 Bytes RAM are sufficient for application logic. Choose over variants with ADC if only comparator functionality is required. Consider the QSOP-24 package constraints for PCB layout. Evaluate power consumption requirements against the specified current draw in different operating modes. Verify that the 2.2 V to 3.6 V supply range matches the system power rails.

Part Context

This component belongs to the C8051F85x/86x family of low-cost 8-bit MCUs. It shares the same core architecture and peripheral set as other members like the C8051F850, differing primarily in memory size and analog peripherals. The family is designed for mixed-signal applications, though this specific variant omits the ADC found in others.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.