C8051F852-C-IUR

Overview

The C8051F852-C-IUR 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 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, four 16-bit timers, and a Programmable Counter Array. Communication interfaces include UART, I2C/SMBus, and SPI. It operates on a 2.2 V to 3.6 V supply within the -40°C to +125°C temperature range and is housed in a 24-pin QSOP package.

Feature Summary

• High-Speed CIP-51 Core: Pipelined architecture delivering up to 25 MIPS throughput using the standard 8051 instruction set.
• On-Chip Debug Circuitry: Facilitates full-speed, non-intrusive in-system debugging without requiring external emulators.
• Mixed-Signal Integration: Combines a 12-bit ADC with up to 16 input channels and two low-current analog comparators.
• Flexible Clocking: Features calibrated internal high-frequency (24.5 MHz) and low-frequency (80 kHz) oscillators.

Applications

• Industrial control systems requiring robust mixed-signal processing
• Battery-powered devices utilizing low-power oscillator modes
• Sensor interface circuits leveraging the high-resolution ADC

Procurement Notes

Verify the specific suffix 'IUR' against the manufacturer's current ordering guide to confirm package type and tape-and-reel status. Confirm that the '-C-' designation aligns with the required industrial temperature range for your application environment. Check for any recent Product Change Notifications regarding obsolescence or pinout updates.

Selection Notes

Select this component when a cost-effective 8-bit MCU with integrated analog peripherals is needed. Ensure the 8 kB Flash capacity meets firmware requirements. Verify that the 24-pin QSOP package fits the PCB layout constraints. Consider the 2.2 V minimum voltage if designing for low-voltage battery operation.

Part Context

This part belongs to the C8051F85x/86x family, which offers low-cost 8-bit MCUs with up to 8 kB of Flash. The family shares common features like the CIP-51 core and crossbar-enabled I/O. Variants differ primarily in memory size and package options, allowing for design flexibility across different form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide for obsolete parts.