C8051F853-C-IU

Overview

The C8051F853-C-IU 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) in a 24-pin QSOP package.

Feature Summary

• High-performance CIP-51 core with pipelined architecture for efficient instruction execution
• Integrated 12-bit Analog-to-Digital Converter supporting multiple input channels and modes
• On-chip debug circuitry enabling full-speed, non-intrusive system debugging without external emulators
• Comprehensive set of digital and analog peripherals including timers, PWM, and comparators

Applications

• Industrial control systems requiring robust MCU capabilities
• Sensor interface applications utilizing integrated ADC and comparators
• Communication gateway devices leveraging UART, SPI, and I2C interfaces
• Battery-powered devices benefiting from low-power operating modes

Procurement Notes

Verify the specific ordering suffix '-IU' confirms the Industrial temperature range (-40°C to +125°C) and 24-pin QSOP package configuration. Confirm that the component status aligns with project lifecycle requirements, as this series may be designated Not Recommended for New Designs. Ensure compatibility with existing development tools and debuggers before finalizing procurement decisions.

Selection Notes

Select this model when an 8-bit MCU with moderate Flash capacity and integrated analog peripherals is required. The CIP-51 core offers improved performance over standard 8051 architectures. Consider the available I/O pins and peripheral count against application needs. Evaluate power consumption characteristics across different operating frequencies and modes to ensure compliance with system energy constraints.

Part Context

The C8051F853-C-IU belongs to the C8051F85x/86x family of low-cost 8-bit MCUs. This family emphasizes high integration by combining mixed-signal capabilities with a fast microcontroller core. The series provides flexible memory options and extensive peripheral sets suitable for various embedded control applications. Silicon Labs designs these devices to simplify system design through reduced component count.

Replacement Considerations

Check for other members within the C8051F85x/86x family that offer different pin counts or memory sizes but share compatible software and hardware interfaces. Verify if alternative packages such as QFN or SOIC are available for the same functional variant if form factor changes are permissible.