C8051F587-IQ

Overview

The C8051F587-IQ is an automotive-qualified, mixed-signal ISP Flash microcontroller from Silicon Labs. It features a high-speed 8051 core operating at up to 50 MHz with 96 kB of banked Flash memory and 8448 bytes of internal data RAM. The device integrates a 12-bit ADC supporting up to 200 ksps, three comparators, and a built-in temperature sensor. Digital peripherals include CAN 2.0, LIN 2.1 controllers, two UARTs, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and supports a temperature range of –40 °C to +125 °C in a 32-pin QFP/QFN package.

Feature Summary

• Automotive-grade qualification for operation in extreme temperatures
• Integrated CAN 2.0 and LIN 2.1 controllers without external crystals
• High-speed pipelined 8051 core with non-intrusive on-chip debug
• Mixed-signal analog peripherals including 12-bit ADC and comparators

Applications

• Automotive body control modules
• Industrial motor control systems
• Sensor interface nodes
• Embedded communication gateways

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current documentation before procurement. Confirm that the component status aligns with project lifecycle requirements, as this part may be subject to end-of-life notices or obsolescence warnings. Ensure compatibility with existing design tools and development kits provided by the manufacturer.

Selection Notes

Select this component when automotive reliability and mixed-signal integration are required within a constrained form factor. The inclusion of dedicated LIN and CAN controllers simplifies network implementation compared to general-purpose MCUs requiring external transceivers. Evaluate the 96 kB Flash capacity against application firmware size and consider the 32-pin package constraints for PCB layout.

Part Context

This device belongs to the C8051F58x/F59x family of mixed-signal microcontrollers. These devices are designed for applications demanding high performance and extensive peripheral integration in small packages. The family shares architectural similarities but varies in memory size, I/O count, and package options to suit different system requirements.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the same family or newer generations. Verify that any replacement maintains the required automotive qualification and peripheral set.