C8051F584-IQ

Overview

The C8051F584-IQ is an automotive-qualified, mixed-signal ISP Flash MCU from the Silicon Labs C8051F58x/F59x family. It features a high-speed 8051 core operating at up to 50 MHz with 50 MIPS throughput. The device includes 96 kB of banked Flash memory and 8.25 kB of internal data RAM. Key peripherals include a 12-bit ADC with up to 32 external inputs, three comparators, CAN 2.0 and LIN 2.1 controllers, two UARTs, SMBus, and enhanced SPI. It operates on a supply voltage of 1.8 V to 5.25 V and supports temperatures from -40 °C to +125 °C in a 48-pin QFN package.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for extended temperature operation.
• Integrated CAN 2.0 and LIN 2.1 controllers that operate without requiring an external crystal.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• High-speed pipelined 8051 core architecture executing 70% of instructions in one or two system clocks.

Applications

• Motor control systems
• Sensor interface circuits
• Parking assistance modules
• Seat position and adjustment mechanisms

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the specific suffix matches the required package variant. Check current lifecycle status as this family may be designated Not Recommended for New Designs. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement.

Selection Notes

Select this part when automotive reliability and integrated bus controllers are required. The absence of external crystals for CAN/LIN simplifies board layout. Verify pin count compatibility with the 48-pin QFN/QFP option. Consider memory size constraints relative to the 96 kB Flash limit. Evaluate power consumption profiles against the typical stop mode specifications.

Part Context

This microcontroller belongs to the C8051F58x/F59x series, which expands the Silicon Labs portfolio of mixed-signal MCUs. The family emphasizes high integration by combining analog peripherals, digital interfaces, and flash memory on a single chip. It targets applications demanding robust communication protocols and precise analog signal processing within compact form factors.

Replacement Considerations

Silicon Labs recommends EFM8BB31F64I-QFN32 as a replacement for related parts in this discontinued family. Verify functional equivalence regarding peripheral sets and pinout compatibility before substitution.