ATSAMD51J20A-MU

Overview

The ATSAMD51J20A-MU is an ARM Cortex-M4F microcontroller from the ATSAME51 family, housed in a QFN-64 package. It features a 1 MB Flash program memory and 256 kB SRAM data RAM. The device operates at a maximum clock frequency of 120 MHz with a 32-bit data bus width. It includes a 12-bit ADC with 24 channels and a 12-bit DAC. The unit supports I/O voltages of 3.3 V and functions within a supply voltage range of 1.71 V to 3.6 V. Operating temperatures span from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4F core with floating-point unit for high-performance processing
• Provides extensive connectivity via interfaces including CAN, LIN, I2C, SPI, and USART
• Features high-resolution analog conversion capabilities with 24-channel 12-bit ADC inputs

Applications

• Industrial control systems requiring robust communication protocols
• Automotive applications meeting AEC-Q100 qualification standards
• Consumer electronics utilizing low-power embedded processing

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-64 package configuration during sourcing. Confirm that the component meets AEC-Q100 automotive qualification requirements if intended for automotive use. Ensure compatibility with 3.3 V logic levels for all connected peripherals. Check for moisture sensitivity labeling to determine proper storage and handling procedures before soldering.

Selection Notes

Select this model when a balance of high-speed processing and rich peripheral integration is required in a compact footprint. The inclusion of CAN and LIN interfaces makes it suitable for networked environments. Consider the 1 MB Flash capacity for complex firmware implementations. Verify that the QFN-64 package aligns with PCB layout constraints and thermal management strategies.

Part Context

This component belongs to the ATSAME51 series of microcontrollers designed for cost-sensitive and performance-oriented applications. It shares architectural similarities with other members of the family but is distinguished by its specific memory size and package type. The series targets markets demanding reliable embedded control with advanced connectivity options.

FAQ

Does the ATSAMD51J20A-MU support automotive applications?

Yes, the device is qualified under the AEC-Q100 standard, making it suitable for automotive electronic systems.

What analog input capabilities does this MCU offer?

It provides 24 channels for a 12-bit Analog-to-Digital Converter (ADC) for precise signal acquisition.