C8051F570-IMR

Overview

The C8051F570-IMR is an 8-bit mixed-signal microcontroller from Silicon Labs, featuring a high-speed CIP-51 core operating at up to 50 MIPS with 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 and 32 external single-ended inputs, two comparators, and extensive digital peripherals such as CAN 2.0, LIN 2.1, UART, SMBus, and SPI. 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 on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Supports automotive qualification standards with operation across a temperature range of -40 °C to +125 °C.
• Features a priority crossbar decoder that allows flexible assignment of peripheral functions to port I/O pins.

Applications

• Automotive embedded systems requiring AEC-Q100 compliance
• Industrial control applications utilizing LIN 2.1 and CAN 2.0 interfaces
• Mixed-signal data acquisition systems employing the 12-bit ADC

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision level matches project requirements, as datasheet revisions may update electrical characteristics or pin definitions. Ensure proper handling procedures are followed for the QFN package to prevent thermal or mechanical damage during assembly.

Selection Notes

Select this component when a robust 8051 architecture is required alongside integrated automotive-grade communication controllers like CAN and LIN. The inclusion of a high-resolution ADC and flexible I/O mapping via the crossbar makes it suitable for complex sensor interfacing. Evaluate power consumption profiles against system requirements, noting typical operating currents at maximum clock speeds.

Part Context

This part belongs to the C8051F55x/56x/57x family of mixed-signal ISPs. These devices share a common architectural foundation but differ in memory sizes, I/O counts, and package options. The C8051F570 specifically utilizes the 40-pin QFN form factor, distinguishing it from the 24-pin and 32-pin variants within the same series.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.