ATSAME51N20A-AFT

Overview

The ATSAME51N20A-AFT is a 32-bit microcontroller from the ATSAMD51 family, featuring an ARM Cortex-M4F core operating at 120 MHz. It integrates 1 MB of Flash memory and 256 KB of SRAM within a 100-TQFP package. The device supports AEC-Q100 automotive qualification and includes a hardware floating-point unit (FPU). Key peripherals include a 12-bit ADC with 28 channels, a 12-bit DAC, and multiple communication interfaces such as I2C, SPI, USART, and USB.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Integrated hardware floating-point unit (FPU) to accelerate complex mathematical computations efficiently.
• Comprehensive analog subsystem featuring high-resolution 12-bit ADC and DAC capabilities.
• Supports diverse connectivity protocols including LIN, Serial, SPI, USART, and USB.

Applications

• Automotive body control modules
• Infotainment system controllers
• Advanced driver assistance systems (ADAS)
• Industrial motor control applications

Procurement Notes

Verify the specific suffix 'AFT' corresponds to the 100-TQFP package and automotive temperature range during sourcing. Confirm that the component meets AEC-Q100 requirements if used in safety-critical automotive designs. Ensure compatibility with existing PCB footprints for the TQFP-100 form factor before finalizing procurement orders.

Selection Notes

Select this model when automotive qualification is mandatory alongside high-performance processing needs. The 1 MB Flash capacity suits applications requiring extensive code storage. Consider the 100-pin count for sufficient I/O availability. Evaluate power consumption profiles against system requirements given the 1.71 V to 3.6 V operating voltage range.

Part Context

This component belongs to the Microchip SAM D51 series, designed for high-performance embedded applications. It shares architectural similarities with other SAM D5x devices but offers specific memory and package configurations. The series targets markets demanding reliable, secure, and efficient microcontroller solutions with strong analog integration.

Replacement Considerations

ATSAMD51N20A-AUT-EFP

FAQ

What is the maximum operating frequency of the ATSAME51N20A-AFT?

The microcontroller features an ARM Cortex-M4F core that operates at a maximum clock frequency of 120 MHz.

Does this part support automotive applications?

Yes, the ATSAME51N20A-AFT is qualified according to the AEC-Q100 standard, making it suitable for automotive environments.