C8051F582-IM

Overview

The C8051F582-IM is an automotive-qualified, mixed-signal ISP Flash MCU from Silicon Labs. It features a high-speed 8051 core with up to 50 MIPS throughput at a 50 MHz clock frequency. The device includes 128 kB of banked Flash memory and 8448 bytes of internal data RAM. Key peripherals include a 12-bit ADC with up to 200 ksps sampling rate, three comparators, CAN 2.0 and LIN 2.1 controllers, two UARTs, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V within a temperature range of –40 °C to +125 °C.

Feature Summary

• Automotive-grade qualification for operation in extreme temperature environments
• Integrated CAN 2.0 and LIN 2.1 controllers without external crystal requirements
• High-speed pipelined 8051 core executing most instructions in one or two system clocks
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging

Applications

• Automotive body control modules
• Industrial motor control systems
• Sensor interface nodes requiring analog-to-digital conversion
• Vehicle communication gateways

Procurement Notes

Verify the specific suffix 'IM' against the manufacturer's current ordering guide to confirm package type and temperature grade. Confirm that the component status aligns with project lifecycle requirements, as this family may be marked as not recommended for new designs. Ensure all electrical specifications match the target application constraints before finalizing procurement.

Selection Notes

Select this model when automotive reliability is required alongside integrated CAN and LIN capabilities. The 32-pin QFN package suits space-constrained designs. Evaluate the 128 kB Flash size against firmware requirements. Consider the 1.8 V to 5.25 V operating range for power supply flexibility. Verify pin compatibility if migrating from other devices in the C8051F58x series.

Part Context

This microcontroller belongs to the C8051F58x/F59x family of mixed-signal MCUs. These devices are designed for applications demanding high integration and robust communication interfaces. The family shares architectural similarities but varies in memory size and peripheral counts. The C8051F582-IM specifically targets automotive and industrial sectors requiring certified performance.

Replacement Considerations

Check for direct pin-compatible alternatives within the C8051F58x series, such as the C8051F583-IM, which offers similar features. Verify software compatibility and peripheral configuration differences between potential substitutes. Consult official documentation for any functional variations.