C8051F591-IMR

Overview

The C8051F591-IMR is an automotive qualified mixed-signal ISP Flash MCU from the C8051F58x/F59x family. It features a high-speed 8051 core delivering up to 50 MIPS at 50 MHz, with 96 kB of banked Flash memory and 8448 bytes of internal data RAM. The device integrates a 12-bit ADC supporting up to 200 ksps, three comparators, CAN 2.0 and LIN 2.1 controllers, two UARTs, SMBus, and SPI. Operating on a 1.8 V to 5.25 V supply, it includes an internal 24 MHz oscillator and supports packages such as the 40-pin QFN.

Feature Summary

• Automotive qualified for operation in extreme temperature environments
• Integrated CAN 2.0 and LIN 2.1 controllers without external crystal requirements
• On-chip debug circuitry enabling full speed non-intrusive in-system debugging
• High-speed pipelined 8051 core with expanded interrupt handling capabilities

Applications

• Automotive body control modules
• Industrial motor control systems
• Smart sensor nodes requiring CAN/LIN connectivity
• Data acquisition systems utilizing integrated analog peripherals

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 memory configuration. Ensure compliance with RoHS directives and automotive qualification standards relevant to your deployment environment before finalizing procurement orders.

Selection Notes

Select this model when automotive reliability and robust communication interfaces are critical. The integration of CAN and LIN controllers simplifies system design by removing external transceivers or crystals. Consider the 96 kB Flash capacity for complex firmware requirements and evaluate the 40-pin QFN package constraints against available PCB real estate.

Part Context

This component belongs to the C8051F58x/F59x series, which provides mixed-signal capabilities within a compact form factor. The series emphasizes high integration levels, combining digital processing with precise analog conversion and dedicated automotive bus controllers. It targets applications demanding standalone System-on-a-Chip solutions with extensive peripheral support.

Replacement Considerations

Pin-for-pin compatibility exists between the C8051F50x, C8051F51x, and C8051F58x/59x series devices. Verify memory size and pin count differences when substituting with other members of the C8051F5xx family to ensure mechanical and functional alignment.