ATSAMD51J18A-MU

Overview

The ATSAMD51J18A-MU is a 32-bit microcontroller based on the ARM Cortex-M4F core, operating at a maximum frequency of 120 MHz. It features 256 KB of flash memory and 128 KB of SRAM. The device includes 24-channel 12-bit ADCs and two 12-bit DACs. It supports interfaces including I2C, LIN, SPI, USART, and USB. Operating voltage ranges from 1.71 V to 3.6 V. It is housed in a QFN-64 package with an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports AEC-Q100 automotive qualification standards
• Includes multiple communication peripherals such as USB, SPI, and I2C
• Features high-resolution analog-to-digital conversion capabilities

Applications

• Automotive infotainment systems
• Industrial control applications
• Medical devices requiring precision analog input
• Consumer electronics with USB connectivity

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-64 package and tray packaging when ordering. Confirm that the AEC-Q100 qualification is required for your specific application environment. Check for any recent Product Change Notifications regarding labeling or material composition updates from Microchip Technology before finalizing procurement.

Selection Notes

Select this component if your design requires an ARM Cortex-M4F core with hardware FPU support. Ensure the QFN-64 package fits your PCB layout constraints. Verify that the 1.71V to 3.6V supply range matches your system power architecture. Consider the 120 MHz clock speed relative to your real-time processing requirements.

Part Context

This part belongs to the SAM D51 family of microcontrollers. It shares architectural similarities with other SAM D51 variants but differs in package type and specific peripheral configurations. The 'M' suffix indicates the QFN package, while 'U' denotes the industrial temperature grade. It is designed for applications needing robust performance in compact form factors.

Replacement Considerations

ATSAMD51J18A-AU offers the same electrical specifications in a TQFP package. ATSAMD51J18A-MUT provides the same core functionality in a tape-and-reel format. ATSAME51J18A-MU is a related variant with CAN interface support instead of USB.