C8051F533-C-IT

Overview

The C8051F533-C-IT is an automotive-qualified, 8-bit microcontroller from the Silicon Labs C8051F52x/F53x family. It features a high-speed CIP-51 core operating at up to 25 MHz with 25 MIPS throughput. The device integrates 4 kB of ISP Flash memory and 256 bytes of internal data RAM. Key peripherals include a 12-bit ADC with programmable throughput up to 200 ksps, a LIN 2.1 controller, hardware SPI, and UART interfaces. It operates within a supply voltage range of 2.0 V to 5.25 V and supports an industrial temperature range of –40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for extended temperature operation.
• Integrated LIN 2.1 controller supporting both master and slave modes without requiring an external crystal.
• High-speed pipelined CIP-51 architecture executing 70% of instructions in one or two system clocks.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging.

Applications

• Automotive body control modules
• LIN bus network nodes
• Industrial sensor interfaces
• Portable instrumentation

Procurement Notes

Verify component status before procurement as this specific part number may be marked Not Recommended for New Designs (NRND). Confirm that the automotive grade variant meets all required environmental specifications for the target application. Ensure compatibility with existing design tools and development kits provided by Silicon Labs for the C8051F5xx series.

Selection Notes

Select this model when automotive reliability and LIN communication capabilities are required alongside standard 8051 functionality. Consider alternative members of the C8051F52x/F53x family if higher memory capacity or different package options are needed. Evaluate the integrated 12-bit ADC performance against application signal requirements.

Part Context

This component belongs to the C8051F52x/F53x mixed-signal microcontroller family. These devices combine a high-speed 8051-compatible core with extensive on-chip analog and digital peripherals. The family is designed for applications requiring high integration, low power consumption, and robust connectivity options in compact packages.

Replacement Considerations

Check for other variants within the C8051F52x/F53x family that offer similar pinouts and peripheral sets. Verify if newer generations from Silicon Labs provide equivalent automotive-grade solutions with improved availability.