C8051F571-IM

Overview

The C8051F571-IM is a mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F57x family, featuring a high-speed 8051 core with up to 50 MIPS throughput at a 50 MHz clock. It integrates 32 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM (256 + 2048 XRAM). The device includes a 12-bit ADC supporting up to 200 ksps with 32 external single-ended inputs, two comparators, and extensive digital peripherals including CAN 2.0, LIN 2.1, SMBus, SPI, and UART. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 40-pin QFN package.

Feature Summary

• Integrated 12-bit analog-to-digital converter with selectable gain and built-in temperature sensor
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• Hardware-enhanced communication interfaces including CAN 2.0 and LIN 2.1 controllers requiring no external crystal
• Pipelined instruction architecture executing 70% of instructions in one or two system clocks

Applications

• Automotive systems requiring AEC-Q100 qualification
• Industrial control applications utilizing CAN and LIN bus protocols
• Mixed-signal data acquisition systems with high-resolution ADC requirements
• Embedded systems needing in-system programming capabilities

Procurement Notes

Verify component authenticity through authorized distributors as this part is marked Not Recommended for New Designs. Confirm package integrity upon receipt, specifically checking for damage to the 40-pin QFN exposed pad. Ensure design compatibility with legacy C8051F57x specifications before procurement due to potential end-of-life status changes.

Selection Notes

Select this component when a fully integrated mixed-signal solution with automotive-grade reliability is required. The C8051F571-IM offers superior integration compared to discrete solutions by combining high-speed processing with precise analog conversion. Consider the 40-pin QFN footprint constraints and verify that the 33 available I/O pins meet interface requirements for target applications.

Part Context

This microcontroller belongs to the C8051F55x/56x/57x family of mixed-signal ISPs. These devices are designed for high-performance embedded applications requiring both digital processing and analog signal conditioning. The family shares common architectural features while varying in pin count and peripheral availability to suit different form factors.

Replacement Considerations

Public confirmed substitute part numbers: None identified.