ATSAMD51P20A-AU-EFP

Overview

The ATSAMD51P20A-AU-EFP is an ARM Cortex-M4F microcontroller from the SAM D51 series, operating at a maximum clock frequency of 120 MHz. It features 1 MB of Flash program memory and 256 KB of RAM within a 128-pin TQFP package. The device supports a supply voltage range of 1.71 V to 3.63 V and includes a 12-bit ADC with up to 99 I/O pins.

Feature Summary

• Integrated floating-point unit for enhanced mathematical processing capabilities
• Supports multiple communication interfaces including USB, SPI, I2C, and UART
• Includes hardware acceleration for cryptographic operations

Applications

• Industrial control systems requiring high-speed processing
• Smart energy metering applications
• Human-machine interface (HMI) displays

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm pinout and package dimensions. Ensure compatibility with existing PCB footprints for the 128-TQFP configuration. Cross-reference the datasheet revision to validate peripheral availability and electrical characteristics prior to finalizing procurement orders.

Selection Notes

Select this component when 1 MB of non-volatile storage and 256 KB of RAM are required alongside a 128-pin interface density. The 120 MHz performance suits applications needing real-time response. Consider the TQFP package for through-hole or standard surface-mount assembly processes compatible with 14x14 mm footprints.

Part Context

This part belongs to the SAM D51 family, designed for low-power, high-performance embedded applications. It utilizes the ARM Cortex-M4F core, distinguishing it from lower-end SAM D20 or D21 series devices by offering increased memory capacity and advanced connectivity options suitable for complex IoT nodes.

Replacement Considerations

ATSAMD51P20A-AU: Identical functional specifications with potential differences in packaging reel labeling or manufacturing site origin.