C8051F853-C-IMR

Overview

The C8051F853-C-IMR 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, and multiple communication peripherals including UART, I2C/SMBus, and SPI. Powered by a 2.2 V to 3.6 V supply, it operates within a temperature range of –40 °C to +125 °C and is housed in a 20-pin QFN package.

Feature Summary

• High-speed CIP-51 core delivering up to 25 MIPS throughput using a standard 8051 instruction set.
• Integrated on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Versatile analog subsystem comprising a 12-bit ADC with up to 16 input channels and two low-current programmable comparators.
• Flexible I/O architecture with up to 18 pins, 5 V tolerance, and Crossbar-enabled peripheral routing.

Applications

• Battery-powered devices requiring low-power operation and efficient code execution
• Industrial control systems utilizing robust communication interfaces like SMBus and SPI
• Motor control applications leveraging PCA PWM capabilities and hardware kill features
• Sensor interface circuits benefiting from integrated 12-bit ADC and analog comparators

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm that the specific ordering suffix matches the required package type and temperature grade for your application environment. Review the latest datasheet revision for any errata or design warnings, as this family is marked Not Recommended for New Designs. Ensure compliance with RoHS directives and AEC-Q100 qualification standards if applicable to your industry sector.

Selection Notes

Select this MCU when a cost-effective 8-bit solution with mixed-signal capabilities is required. The CIP-51 core offers superior performance over traditional 8051 architectures while maintaining software compatibility. Consider the integrated analog peripherals to reduce external component count. Evaluate the available Flash size and I/O pin count against system requirements before finalizing the selection.

Part Context

This component belongs to the C8051F85x/86x family of low-cost 8-bit MCUs. It shares architectural similarities with other members such as the C8051F850 and C8051F851, differing primarily in memory sizes and peripheral configurations. The family is designed for standalone system-on-chip solutions, integrating essential digital and analog functions to minimize board space and complexity.

Replacement Considerations

Public documentation indicates this family is Not Recommended for New Designs. Verify availability of direct substitutes within the same series or consult Silicon Labs for recommended modern alternatives. Ensure functional equivalence regarding pinout, voltage levels, and peripheral support when transitioning to replacement parts.