ATSAME51J20A-MU-EFP

Overview

The ATSAME51J20A-MU-EFP is an ARM Cortex-M4F microcontroller from the Microchip ATSAME51 series, 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 3.63 V. Operating temperatures span from -40°C to +85°C.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports automotive reliability standards via AEC-Q100 qualification
• Includes multiple communication interfaces such as USB, CAN, SPI, and I2C

Applications

• Automotive infotainment systems
• Industrial motor control applications
• Smart energy metering devices

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the QFN-64 configuration. Confirm that the selected variant meets all required interface and memory specifications for the target design.

Selection Notes

Select this component when a balance of high-performance processing and extensive connectivity is required. The 1 MB Flash capacity accommodates complex firmware, while the integrated FPU aids real-time signal processing tasks. Verify that the 120 MHz speed and peripheral count align with system latency requirements.

Part Context

This part belongs to the ATSAME51 family, designed for high-performance embedded applications. It shares architectural similarities with other M4F-based MCUs but offers specific memory and pin configurations. The QFN-64 package provides a compact solution for space-constrained designs requiring robust connectivity options.

Replacement Considerations

Consult official substitution guides for compatible parts within the ATSAME51 or ATSAME53 families. Verify pin-to-pin compatibility and memory size equivalence before replacing.