C8051F580-IQ

Overview

The C8051F580-IQR is a mixed-signal ISP Flash MCU from Silicon Labs, featuring an 8-bit 8051 core with up to 50 MIPS throughput at a 50 MHz clock. It integrates 128 KB of banked Flash memory and 8448 bytes of internal data RAM (256 + 8192 XRAM). The device includes a 12-bit ADC supporting up to 32 external inputs and 200 ksps conversion speed, alongside three comparators and a built-in temperature sensor. Connectivity options 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 48-pin QFP package.

Feature Summary

• High-speed 8051 microcontroller core with pipelined architecture for efficient instruction execution
• Integrated 12-bit analog-to-digital converter with selectable gain and programmable window detector
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Automotive qualified design supporting extended industrial temperature ranges

Applications

• Industrial control systems requiring robust communication interfaces
• Medical diagnostic equipment utilizing high-precision analog signal acquisition
• Embedded modems and voice over Internet protocol telephones
• Point-of-sale terminals and weigh scales

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature rating. Confirm that the component status aligns with project lifecycle requirements, as this family may be designated as not recommended for new designs. Cross-reference the datasheet revision date to validate electrical characteristics and pinout definitions prior to final procurement.

Selection Notes

Select this component when a highly integrated mixed-signal solution is required within an 8051 ecosystem. The inclusion of hardware CAN and LIN controllers eliminates the need for external transceivers or crystals in many automotive applications. Evaluate the available I/O count and memory size against application constraints to ensure optimal resource utilization compared to other members of the C8051F58x series.

Part Context

This part belongs to the C8051F58x/F59x family of mixed-signal ISP Flash MCUs. These devices are designed for applications demanding high performance and extensive analog peripherals. The family shares a common architectural foundation but varies in memory size, I/O count, and package options. This specific model represents a configuration optimized for general-purpose embedded control tasks.

Replacement Considerations

Consult the official datasheet for alternative part numbers within the C8051F58x series that offer compatible pinouts and functionality. Verify software compatibility if migrating between different memory configurations or peripheral counts within the same family.