ATSAME54N20A-AUT-EFP

Overview

The ATSAME54N20A-AUT-EFP is a 32-bit microcontroller from the SAM E54 family, featuring an ARM Cortex-M4F core with a floating-point unit. It operates at speeds up to 120MHz and includes 1MB of Flash memory and 256KB of RAM. The device supports a supply voltage range of 1.71V to 3.63V and functions within an ambient temperature range of -40°C to +85°C. It is housed in a 100-TQFP package and offers 81 I/O pins. Connectivity options include CANbus, Ethernet, USB, SPI, I2C, UART/USART, LINbus, IrDA, MMC/SD, QSPI, and EBI/EMI.

Feature Summary

• Integrated AEC-Q100 automotive qualification for reliable operation in demanding environments.
• Supports high-speed communication protocols including Ethernet and USB alongside standard serial interfaces.
• Features advanced analog peripherals with multiple 12-bit ADC channels and 12-bit DAC outputs.
• Includes hardware security features and peripheral controllers such as DMA and I2S.

Applications

• Automotive infotainment systems
• Industrial motor control applications
• Smart home and building automation devices
• Medical equipment requiring certified components

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct package type and temperature rating. Confirm that the specific suffix matches the required automotive grade and reel packaging specifications. Cross-reference the silicon errata sheet for any known limitations relevant to your design implementation.

Selection Notes

Select this component when automotive certification is mandatory for the target application. Ensure the 100-pin TQFP footprint fits the board layout constraints. Verify that the 1MB Flash and 256KB RAM meet the software requirements. Check interface availability for necessary connections like Ethernet or CANbus before finalizing the choice.

Part Context

This MCU belongs to the SAM E54 series, designed for secure IoT and industrial applications. It shares architectural similarities with other SAM E5x devices but differs in memory size and pin count. The EFP suffix indicates the specific 100-TQFP package variant. It complements the broader Microchip portfolio by providing a balance of performance and automotive compliance.

Replacement Considerations

ATSAME54P20A-AUT-EFP offers identical specifications but utilizes a 128-TQFP package with additional I/O pins. ATSAMD51N20A-AUT-EFP provides similar performance but lacks automotive qualification. Verify pin compatibility and software migration efforts when considering these alternatives.