C8051F586-IQR

Overview

The C8051F586-IQR is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F58x family, featuring a high-speed 8051 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 200 ksps throughput, three comparators, and a built-in temperature sensor. 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 automotive qualified for temperatures ranging from –40 °C to +125 °C.

Feature Summary

• High-performance pipelined 8051 core delivering up to 50 MIPS throughput
• Integrated 12-bit analog-to-digital converter with selectable gain and window detector
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging
• Automotive qualified with wide operating temperature range and robust I/O drive

Applications

• Automotive body control modules
• Industrial motor control systems
• Smart sensors and instrumentation
• CAN/LIN bus gateway devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific package type matches design requirements. Check for end-of-life status as this family may be discontinued. Ensure environmental compliance documentation aligns with target market regulations. Validate that the ordering suffix corresponds to the correct tape-and-reel quantity if applicable.

Selection Notes

Select this part when a robust 8051 architecture with integrated CAN and LIN controllers is required. Consider the 96 kB Flash size and 8.25 kB RAM capacity against application code complexity. Evaluate the 32-pin QFN package constraints for PCB layout. Compare power consumption in stop mode against system battery life requirements. Verify peripheral availability such as PCA modules and timers for specific timing needs.

Part Context

This component belongs to the C8051F58x/F59x mixed-signal ISP Flash MCU family. It shares architectural similarities with other members like the C8051F580 and C8051F581 but differs in memory size and pin count. The family emphasizes high integration by combining digital peripherals with analog functions on a single chip, reducing external component count.

Replacement Considerations

Consult official Silicon Labs documentation for confirmed substitute part numbers within the same family or next-generation equivalents. Verify pin compatibility and register mapping before substitution. Ensure any replacement maintains the required automotive qualification and interface support.