C8051F850-C-IUR

Overview

The C8051F850-C-IUR is an 8-bit mixed-signal microcontroller from the C8051F85x family, featuring a high-speed CIP-51 core with up to 25 MHz throughput. 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, and multiple digital peripherals including UART, SPI, and I2C/SMBus. Operating within a 2.2 V to 3.6 V supply range, it supports industrial temperatures (-40°C to +125°C) and is housed in a 24-pin QSOP package.

Feature Summary

• High-performance pipelined CIP-51 core compatible with standard 8051 instruction sets
• Integrated 12-bit Analog-to-Digital Converter with configurable input channels
• Flexible crossbar-enabled General-Purpose I/O with 5 V tolerance
• On-chip debug circuitry enabling full-speed non-intrusive system debugging

Applications

• Industrial process control systems
• Battery-powered measurement devices
• Motor control applications
• Sensor interface modules

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm the specific ordering suffix matches required package and temperature grades. Check for current lifecycle status as this series may be designated Not Recommended for New Designs. Ensure ESD handling protocols are followed during storage and assembly.

Selection Notes

Select this model when a robust 8-bit MCU with integrated analog capabilities is required. The -IUR suffix indicates an industrial temperature range and tape-and-reel packaging suitable for automated surface-mount assembly. Evaluate pin count and peripheral needs against the 24-pin QSOP configuration to ensure mechanical fit.

Part Context

This component belongs to the C8051F85x/86x low-cost 8-bit MCU family designed by Silicon Laboratories. These devices represent System-on-Chip solutions combining a fast microcontroller core with extensive on-chip peripherals. The family targets cost-sensitive applications requiring reliable performance in harsh environments.

Replacement Considerations

Consult official Silicon Labs documentation for qualified replacement part numbers. Verify compatibility regarding pinout, memory size, and peripheral availability before substitution.