C8051F520-C-IMR

Overview

The C8051F520-C-IMR is an 8-bit microcontroller from the Silicon Labs C8051F52x family, featuring a CIP-51 core operating at up to 25 MHz. It integrates 2 kB of ISP Flash memory and 256 bytes of internal data RAM. The device includes a 12-bit ADC with programmable throughput up to 200 ksps, a programmable comparator, and a built-in temperature sensor. Digital peripherals include hardware SPI, UART, and LIN 2.1 controllers. It operates on a supply voltage of 2.0 to 5.25 V and is available in a 10-pin DFN package.

Feature Summary

• Features a high-speed pipelined CIP-51 core delivering up to 25 MIPS throughput.
• Integrates a 12-bit analog-to-digital converter with programmable throughput and windowed interrupt generation.
• Includes hardware support for SPI, UART, and LIN 2.1 communication protocols.
• Provides on-chip debug circuitry for full-speed, non-intrusive in-system debugging.

Applications

• Automotive systems requiring AEC-Q100 qualification
• Industrial control applications utilizing LIN bus communication
• Sensor interface designs leveraging integrated ADC and temperature sensing

Procurement Notes

Verify component status as this model is designated Not Recommended for New Designs. Confirm availability through authorized distributors or surplus channels. Ensure compatibility with existing design constraints before procurement. Check for official replacement recommendations from Silicon Labs if initiating new projects.

Selection Notes

Select this component for legacy 8051-based designs requiring automotive qualification and integrated analog peripherals. Consider the limited Flash capacity and pin count when evaluating system requirements. Verify that the 2.0V to 5.25V supply range aligns with target power architectures. Evaluate alternative models from the same family if higher performance or newer design support is required.

Part Context

This part belongs to the C8051F52x/F53x family of 8-bit microcontrollers. These devices are characterized by their fully static operation and comprehensive mixed-signal capabilities. The family supports both standard 8051 instruction sets and enhanced CIP-51 features for improved code density and execution speed.

Replacement Considerations

Silicon Labs recommends the C8051F520-C-IM as a manufacturer-recommended substitute. Verify pinout and peripheral compatibility before substitution.