C8051F585-IMR

Overview

The C8051F585-IMR is an automotive-qualified mixed-signal ISP Flash MCU from the C8051F58x/F59x family, featuring a high-speed 8051 core with up to 50 MIPS throughput at 50 MHz. It integrates 96 kB of banked Flash memory and 8448 bytes of internal data RAM. The device includes 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 utilizes a 48-pin QFN package.

Feature Summary

• Automotive qualified for operation in temperatures ranging from –40 °C to +125 °C
• Integrated CAN 2.0 and LIN 2.1 controllers requiring no external crystal
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging
• High-speed pipelined 8051 core executing 70% of instructions in one or two system clocks

Applications

• Automotive embedded control systems
• Industrial communication gateways
• Smart sensor nodes with analog signal processing
• LIN/CAN bus master or slave devices

Procurement Notes

Verify component authenticity through authorized Silicon Laboratories distributors. Confirm the specific ordering suffix matches the required package and temperature grade. Check for current product lifecycle status as this series may be designated Not Recommended for New Designs. Ensure ESD handling protocols are followed during storage and assembly.

Selection Notes

Select this model when automotive qualification and integrated LIN/CAN interfaces are required within a compact 48-pin form factor. Compare against the C8051F58x/59x pin-for-pin compatible variants if different memory sizes or I/O counts are needed. Evaluate power consumption requirements against the typical stop mode current specifications.

Part Context

This component belongs to the C8051F58x/F59x mixed-signal microcontroller family by Silicon Laboratories. These MCUs combine a fast 8051 core with extensive analog peripherals and digital communication interfaces. The family supports in-system programming and offers flexible clock sources including an accurate internal oscillator suitable for CAN and LIN timing.

Replacement Considerations

Consult the official datasheet for pin-compatible alternatives within the C8051F58x/F59x series. Verify that any substitute part maintains the same Flash capacity, package type, and automotive temperature rating.