C8051F523-IM

Overview

The C8051F523-IM is an automotive-grade microcontroller from the Silicon Labs C8051F52x/F53x family. It features a high-speed 8051 core operating at up to 25 MIPS with a 25 MHz system clock. The device includes 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. Key peripherals include a 12-bit ADC with up to 200 ksps throughput, a LIN 2.1 controller, hardware SPI, and UART. It operates on a supply voltage of 2.0 to 5.25 V and supports an extended temperature range of –40 to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust operation in demanding environments.
• Integrated LIN 2.1 controller supporting both master and slave modes without requiring an external crystal.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• High-precision internal oscillator with ±0.5% accuracy suitable for precise timing applications.

Applications

• Automotive body electronics and sensor interface modules
• Industrial control systems requiring LIN communication
• Portable devices utilizing low-power operational modes

Procurement Notes

Verify the specific suffix and package type against the official datasheet to ensure compatibility with your design requirements. Confirm that the component meets the necessary automotive qualification standards if used in vehicle applications. Check for any recent product change notices or end-of-life announcements prior to finalizing procurement plans.

Selection Notes

Select this component when an automotive-grade MCU with integrated LIN capabilities is required. It is suitable for designs needing a compact solution with sufficient processing power for real-time control tasks. Consider the available I/O pins and peripheral set to ensure they meet the system's connectivity needs.

Part Context

This part belongs to the C8051F52x/F53x series of mixed-signal microcontrollers. These devices are designed for high integration in small packages, combining analog and digital peripherals on a single chip. The series is optimized for cost-sensitive applications while maintaining high performance and reliability.

Replacement Considerations

Consult the manufacturer's documentation for recommended replacements or obsolescence notices. Verify pin-to-pin compatibility and functional equivalence before substituting with other parts in the same family or from different manufacturers.

FAQ

Does the C8051F523-IM support LIN communication without an external crystal?

Yes, the device includes an integrated LIN 2.1 controller that can operate as a master or slave without requiring an external crystal, leveraging its high-precision internal oscillator.

What is the maximum throughput of the ADC on this microcontroller?

The 12-bit Analog-to-Digital Converter (ADC) supports a programmable throughput of up to 200 ksps.