C8051F534-C-IMR

Overview

The C8051F534-C-IMR is an automotive-grade, 8-bit microcontroller from the 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 programmable comparator, hardware SPI, UART, and LIN 2.1 controller support. It operates on a supply voltage range of 2.0 V to 5.25 V and is qualified to AEC-Q100 standards for operation between -40 °C and +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 specifications for extended temperature ranges.
• 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.
• Flexible digital peripherals including hardware SPI, UART, and LIN 2.1 controller capabilities.

Applications

• Automotive sensor interface modules
• Industrial control systems requiring LIN communication
• Motor control applications

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm the specific ordering suffix matches the required package type and temperature grade. Ensure compliance with RoHS directives and check for any relevant product change notices (PCN) regarding manufacturing site updates before finalizing procurement orders.

Selection Notes

Select this component when automotive reliability and extended temperature operation are mandatory. The integrated LIN controller simplifies network design by eliminating external transceivers. Evaluate the 4 kB Flash capacity against application firmware requirements. Consider the 256-byte RAM limit for complex data structures or real-time processing tasks.

Part Context

This part belongs to the C8051F52x/F53x family of mixed-signal System-on-Chip microcontrollers. These devices combine a high-performance 8051-compatible core with extensive analog and digital peripherals. The family is designed for cost-sensitive embedded applications requiring robust connectivity and precise signal conditioning capabilities.

Replacement Considerations

Silicon Labs has designated the C8051F52x/F52xA/F53x/F53xA series as 'Not Recommended for New Designs'. Developers should evaluate the EFM8BB52F16I-QFN20 as a potential replacement option for new projects requiring similar functionality.

FAQ

Does the C8051F534-C-IMR require an external crystal for LIN Master operation?

No, the device includes a high-precision internal oscillator with ±0.5% accuracy that supports UART and LIN-Master operation without requiring an external crystal.

What is the maximum sampling rate of the onboard ADC?

The 12-bit ADC supports a programmable throughput of up to 200 ksps.