ATSAMD51N20A-AU-EFP

Overview

The ATSAMD51N20A-AU-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 (1M x 8) of in-system programmable flash memory and 256 KB of SRAM. The device provides 81 general-purpose I/O pins and includes a 12-bit ADC resolution. It operates within a supply voltage range of 1.71 V to 3.63 V and is housed in a 100-TQFP package with dimensions of 14x14 mm.

Feature Summary

• Integrated floating-point unit for efficient mathematical processing
• Supports USB connectivity alongside multiple communication interfaces
• Includes hardware acceleration peripherals such as DMA and CRC

Applications

• Industrial control systems requiring high-speed processing
• Smart energy metering applications
• Medical devices needing precise analog signal acquisition

Procurement Notes

Verify the specific suffix 'AU-EFP' against official Microchip documentation to confirm the tape-and-reel packaging format and extended temperature grade. Ensure compatibility with existing PCB footprints for the 100-TQFP package. Cross-reference silicon errata sheets for known operational limitations before finalizing procurement plans.

Selection Notes

Select this component when 1 MB of flash and 256 KB of RAM are required for complex firmware execution. The 120 MHz speed and FPU support make it suitable for DSP-intensive tasks. Compare pin counts and peripheral availability against lower-density SAM D51 variants to ensure optimal cost-performance balance for the target application constraints.

Part Context

This part belongs to the SAM D51 family, designed for high-performance embedded applications. It shares architectural similarities with other SAM D51 variants but offers specific memory configurations. The family emphasizes low power consumption while delivering significant computational throughput through its ARM Cortex-M4F architecture.

Replacement Considerations

ATSAMD51N20A-AUT-EFP

FAQ

What is the maximum operating frequency of the ATSAMD51N20A-AU-EFP?

The microcontroller supports a maximum system clock frequency of 120 MHz.

Does this device include a floating-point unit?

Yes, the ARM Cortex-M4F core includes a single-precision floating-point unit (FPU).