C8051F586-IM

Overview

The C8051F586-IM is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F58x family, featuring a high-speed CIP-51 core operating at up to 50 MHz. It integrates 96 kB of in-system programmable Flash memory and 8448 bytes of internal data RAM. The device includes a 12-bit ADC with up to 32 external single-ended inputs, three comparators, and automotive qualification for temperatures ranging from -40°C to +125°C. Communication interfaces include CAN 2.0, LIN 2.1, two UARTs, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 32-pin QFN package.

Feature Summary

• 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 separate emulator hardware
• Priority Crossbar Decoder allowing flexible assignment of digital and analog peripheral functions to port I/O pins
• Automotive qualified design supporting operation across extended industrial temperature ranges

Applications

• Automotive body control modules and sensor interface units
• Industrial communication gateways utilizing CAN or LIN bus protocols
• Mixed-signal data acquisition systems requiring high-resolution analog-to-digital conversion
• Embedded motor control applications leveraging PWM and timer peripherals

Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm package marking and date codes against official Silicon Labs documentation. Ensure ESD handling procedures are followed during storage and assembly. Validate pin compatibility if replacing existing designs, as this part is not recommended for new designs.

Selection Notes

Select this component when legacy C8051 architecture compatibility is required alongside integrated CAN and LIN capabilities. Consider the 32-pin QFN form factor for space-constrained PCB layouts. Evaluate power consumption requirements against typical operating currents specified at maximum clock speeds. Verify that the available GPIO count meets system interface needs before finalizing the selection.

Part Context

This microcontroller belongs to the C8051F58x/F59x mixed-signal ISP Flash MCU family. It shares architectural similarities with other members like the C8051F587-IM but differs in specific memory sizes and peripheral configurations. The family emphasizes high integration by combining analog peripherals with robust digital communication controllers on a single silicon die.

Replacement Considerations

Official substitutes within the same family include the C8051F587-IM, which offers similar specifications with potential variations in Flash capacity or pinout configuration. Cross-referencing datasheets is essential to ensure functional equivalence regarding peripheral availability and electrical characteristics.