ATSAME51J20A-AU-EFP

Overview

The ATSAME51J20A-AU-EFP is an ARM Cortex-M4F microcontroller from the Microchip ATSAME51 series, housed in a TQFP-64 package. It features a 1 MB Flash program memory and 256 kB SRAM data RAM. The device operates with a maximum clock frequency of 120 MHz and supports a supply voltage range of 1.71 V to 3.63 V. It includes 51 I/O lines, 24 ADC channels with 12-bit resolution, and interfaces such as USB, CAN, I2C, SPI, and USART. The component is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Integrated ARM Cortex-M4F core with floating-point unit for efficient signal processing
• Extended flash performance architecture supporting high-speed code execution
• Automotive-grade qualification ensuring reliability in demanding environments
• Comprehensive connectivity suite including USB and CAN controllers

Applications

• Automotive infotainment systems
• Industrial motor control applications
• Smart sensor nodes requiring CAN communication
• USB-enabled peripheral devices

Procurement Notes

Verify the specific suffix 'EFP' against official Microchip documentation to confirm the tray packaging configuration and extended temperature or performance variants. Ensure the part number matches the exact pinout and memory configuration required for your design, as minor suffix changes can alter package type or electrical characteristics. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards.

Selection Notes

Select this component when a balance of high-performance computing and robust automotive connectivity is required. The 1 MB Flash capacity accommodates complex firmware, while the integrated USB and CAN interfaces reduce external component count. Consider the TQFP-64 package constraints for PCB layout and thermal management during the initial design phase.

Part Context

This MCU belongs to the ATSAME51 family, designed for applications needing high performance with low power consumption. It shares architectural similarities with other SAM E5x devices but offers specific memory and interface configurations tailored for cost-sensitive yet feature-rich embedded solutions.

Replacement Considerations

Consult Microchip's official cross-reference tools for direct replacements. Verify that any substitute maintains the same TQFP-64 footprint and pin compatibility to avoid redesigning the PCB.