ATSAMD51J20A-AUT-EFP

Overview

The ATSAMD51J20A-AUT-EFP is a 32-bit microcontroller based on the ARM Cortex-M4F core, operating at a maximum clock frequency of 120 MHz. It features 1 MB of Flash program memory and 256 kB of SRAM data RAM. The device includes 24-channel 12-bit ADCs and two 12-bit DACs. It provides 51 I/O lines and supports interfaces including USB, SPI, I2C, USART, QSPI, I2S, and LIN. Operating voltage ranges from 1.71 V to 3.63 V, with an industrial temperature range of -40°C to +85°C. It is housed in a 64-TQFP package.

Feature Summary

• Integrated floating-point unit (FPU) within the ARM Cortex-M4F core for efficient mathematical processing.
• Supports machine learning acceleration through dedicated hardware resources.
• Includes multiple high-speed communication peripherals such as USB Full-Speed and QSPI for external memory access.
• Features extensive analog capabilities with 24-channel 12-bit ADCs and dual 12-bit DACs.

Applications

• Industrial control systems requiring robust connectivity and processing power.
• Consumer devices utilizing USB connectivity and audio interfaces via I2S.
• Smart home appliances needing extended flash performance and low-power operation.
• Medical equipment applications benefiting from AEC-Q100 qualification standards.

Procurement Notes

Verify the specific suffix 'AUT' indicates automotive-grade reliability and tape-and-reel packaging when sourcing. Confirm that the part number corresponds to the SAM D51 series specifications rather than the ATSAME5x family. Ensure compatibility with required interface protocols and memory sizes for the target application design.

Selection Notes

Select this component when 1 MB of non-volatile storage and 256 kB of RAM are required alongside USB and QSPI interfaces. Compare against lower-memory variants like the ATSAMD51J19A if cost or space constraints allow reduced capacity. Consider the ATSAME51 series if Ethernet connectivity is needed instead of USB-only configurations.

Part Context

This MCU belongs to the SAM D51 family, designed for high-performance applications requiring machine learning capabilities and extended flash memory. It shares architectural similarities with the ATSAME5x series but focuses on USB-based connectivity rather than Ethernet. The device targets markets demanding reliable ARM Cortex-M4F performance in compact packages.

Replacement Considerations

ATSAMD51J20A-AU-EFP

FAQ

Does the ATSAMD51J20A-AUT-EFP include a floating-point unit?

Yes, it integrates an FPU within the ARM Cortex-M4F core to accelerate mathematical computations.

What is the maximum operating speed of this microcontroller?

The device supports a maximum clock frequency of 120 MHz.