C8051F554-IMR

Overview

The C8051F554-IMR is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F55x family, featuring a high-speed 8051 core operating at up to 50 MHz. It integrates 32 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM. The device includes a 12-bit ADC with up to 200 ksps throughput, two comparators, and multiple digital peripherals including CAN 2.0, LIN 2.1, UART, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 24-pin QFN package.

Feature Summary

• Integrated 12-bit analog-to-digital converter with selectable gain and built-in temperature sensor
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• Hardware-enhanced communication interfaces supporting CAN 2.0 and LIN 2.1 protocols without requiring external crystals
• Pipelined instruction architecture delivering up to 50 MIPS throughput with optimized clock efficiency

Applications

• Automotive embedded control systems requiring AEC-Q100 qualification
• Industrial monitoring applications utilizing high-speed analog signal acquisition
• Networked devices implementing CAN or LIN bus communication protocols

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and date code against official Silicon Labs documentation. Confirm that the specific suffix matches the requested package type and ensure compliance with RoHS standards. Check for any relevant product change notices regarding assembly or material updates prior to finalizing procurement orders.

Selection Notes

Select this component when a compact 24-pin form factor is required alongside integrated CAN and LIN controllers. It is suitable for designs needing a standalone system-on-chip solution with onboard voltage regulation and power management features. Consider the 32 kB Flash capacity and 2304 bytes RAM for firmware complexity and data storage requirements within the specified industrial temperature range.

Part Context

This microcontroller belongs to the C8051F55x/56x/57x series, which are designed for automotive and industrial environments. The family shares pin-for-pin compatibility across different memory configurations and package options. These devices emphasize high integration levels to reduce external component count while maintaining robust performance in constrained spaces.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the C8051F55x series. Verify functional equivalence regarding memory size and peripheral availability before substituting. Note that this family is marked as Not Recommended for New Designs; evaluate long-term availability and potential obsolescence risks.