C8051F852-C-IM

Overview

The C8051F852-C-IM is an 8-bit microcontroller from the Silicon Labs C8051F85x/86x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 512 Bytes of RAM (256 + 256). The device includes a 12-bit ADC with up to 16 input channels, two analog comparators, and communication peripherals such as UART, I2C/SMBus, and SPI. It operates on a supply voltage of 2.2 to 3.6 V and supports industrial temperature ranges (-40 to +125 °C for -Ix suffixes).

Feature Summary

• High-performance CIP-51 core with pipelined architecture supporting standard 8051 instruction sets.
• Integrated 12-bit Analog-to-Digital Converter with multiple input channels and configurable reference options.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Dual internal oscillators providing calibrated high-frequency and low-frequency clock sources.

Applications

• Industrial control systems requiring robust analog signal processing.
• Sensor nodes utilizing integrated ADC and comparator capabilities.
• Communication interfaces leveraging UART, SPI, and I2C peripherals.
• Battery-powered devices benefiting from low-power operational modes.

Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature range. The -IM suffix indicates an Industrial temperature grade (-40°C to +125°C) and typically corresponds to a specific package variant. Confirm availability status as this series may be subject to end-of-life notices. Ensure compatibility with existing design constraints regarding supply voltage and pinout configurations before procurement.

Selection Notes

Select this component when a cost-effective 8-bit solution with mixed-signal capabilities is required. The C8051F852 offers sufficient Flash and RAM for moderate complexity applications. Consider the -IM variant for environments demanding extended temperature operation. Evaluate the available GPIO count and peripheral set against system requirements to ensure adequate resource allocation for I/O and communication tasks.

Part Context

This part belongs to the C8051F85x/86x family, which provides low-cost 8-bit MCU solutions with up to 8 kB of Flash. The family shares common architectural features including the CIP-51 core and extensive analog peripherals. This specific model represents one configuration within the series, differentiated by memory size, package, and temperature rating. The series is designed for applications needing high integration and ease of development.

Replacement Considerations

Consult official documentation for direct substitutes within the C8051F85x/86x family. Verify pin compatibility and electrical specifications when considering alternative packages or temperature grades. Cross-reference feature sets to ensure equivalent peripheral availability. Check for any recommended new design alternatives if current production is discontinued.

FAQ

What is the maximum operating frequency of the C8051F852?

The device supports a system clock frequency of up to 25 MHz, achieving up to 25 MIPS throughput.

Does the C8051F852 support in-circuit debugging?

Yes, it includes on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging without requiring an external emulator.

What are the supported supply voltage ranges?

The recommended operating supply voltage (VDD) ranges from 2.2 V to 3.6 V.