C8051F572-IMR

Overview

The C8051F572-IMR is a mixed-signal ISP Flash MCU from the C8051F55x/56x/57x family, featuring a high-speed 8051 core with up to 50 MIPS throughput at 50 MHz. It integrates 32 kB of in-system programmable Flash and 2304 bytes of internal data RAM. The device includes a 12-bit ADC supporting up to 200 ksps with up to 32 external single-ended inputs, two comparators, and a built-in temperature sensor. Digital peripherals include CAN 2.0 and LIN 2.1 controllers without requiring an external crystal, alongside hardware-enhanced UART, SMBus, and SPI ports. It operates on a supply voltage of 1.8 V to 5.25 V.

Feature Summary

• High-performance pipelined 8051 core executing 70% of instructions in one or two system clocks
• Integrated CAN 2.0 and LIN 2.1 controllers eliminating the need for external crystals
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging
• Automotive qualified with AEC-Q100 compliance and operation across -40°C to +125°C

Applications

• Automotive embedded systems
• Industrial control applications
• Network communication interfaces
• Sensor signal processing modules

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm the specific ordering suffix matches the required package and temperature grade. Check current status as this family may be marked Not Recommended for New Designs; evaluate long-term availability and lifecycle support before finalizing procurement plans.

Selection Notes

Select this model when automotive qualification and integrated CAN/LIN capabilities are required within a compact form factor. Ensure the 32 kB Flash and 2304 bytes RAM meet application memory constraints. Verify that the 12-bit ADC resolution and sampling rate align with analog input requirements. Consider pin count compatibility if migrating from other members of the F55x/F56x/F57x series.

Part Context

This microcontroller belongs to the C8051F55x/56x/57x mixed-signal ISP Flash MCU family produced by Silicon Laboratories. These devices are designed as complete system-on-a-chip solutions, integrating analog peripherals, digital interfaces, and a high-speed CPU. The family targets cost-sensitive and performance-oriented applications requiring robust connectivity and reliable operation in demanding environments.

Replacement Considerations

Pin-for-pin compatibility exists between the C8051F55x/57x series and the C8051F58x/59x series. Evaluate these alternatives for updated features or availability while maintaining mechanical and electrical interface continuity.