C8051F536A-IM

Overview

The C8051F536A-IM is an automotive-grade, 8-bit microcontroller based on the CIP-51 core. It features a maximum system clock of 25 MHz and includes 8 kB of ISP Flash memory with 256 bytes of internal data RAM. The device integrates a 12-bit ADC supporting up to 200 ksps throughput, a programmable comparator, and a built-in temperature sensor. Communication interfaces include hardware SPI, UART, and LIN 2.1 controller capabilities. Operating voltage ranges from 2.0 V to 5.25 V, and it supports operation across a temperature range of –40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high-temperature reliability
• Integrated 12-bit analog-to-digital converter with programmable throughput and windowed interrupt generation
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• LIN 2.1 controller support allowing master and slave operation without requiring an external crystal

Applications

• Motor control systems
• Sensor interface circuits
• Parking assistance modules
• Seat position and adjustment controllers
• Fluid level monitoring units

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm that the specific part number matches the required package variant and silicon revision. Check for End-of-Life status announcements as this family may be subject to obsolescence notices. Ensure compliance with RoHS and REACH regulations relevant to your region before finalizing procurement orders.

Selection Notes

Select this component when automotive grade certification and wide temperature operation are mandatory requirements. Consider the 25 MHz processing speed and available peripheral set against application complexity. Evaluate pin count availability in QFN, TSSOP, or DFN packages relative to board layout constraints. Verify that the integrated communication interfaces meet the specific protocol needs of the target system design.

Part Context

This microcontroller belongs to the C8051F52x/F53x family, which provides highly integrated solutions for industrial and automotive environments. The series emphasizes low power consumption and robust analog peripherals within a compact form factor. Designed for cost-sensitive applications requiring reliable performance under harsh conditions, these devices offer extensive digital and analog integration on a single chip.

Replacement Considerations

Silicon Labs recommends EFM8BB52F16I-QFN20 as a replacement for this part due to its End-of-Life status.