ATSAME51G19A-MU

Overview

The ATSAME51G19A-MU is an ARM microcontroller from the ATSAME51 family, featuring a 32-bit ARM Cortex-M4F core with a floating-point unit. It operates at a maximum clock frequency of 120 MHz and includes 512 kB of Flash program memory and 192 kB of SRAM data RAM. The device provides 51 general-purpose I/Os and supports a supply voltage range of 1.71 V to 3.6 V. It integrates multiple communication interfaces including CAN, LIN, I2C, SPI, and USART. The component is housed in a QFN-64 package and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated ARM Cortex-M4F processor with hardware floating-point support for efficient signal processing
• High-speed internal flash memory with up to 120 MHz operation capability
• Comprehensive peripheral set supporting various serial communication protocols

Applications

• Industrial control systems requiring robust communication interfaces
• Automotive applications meeting AEC-Q100 qualification standards
• Smart energy metering devices
• Medical equipment controllers

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-64 package and industrial temperature grade during procurement. Confirm that the ordering part number matches the exact pinout and memory configuration required for your design. Ensure compatibility with your PCB footprint specifications before finalizing orders.

Selection Notes

Select this component when a balance of processing power and connectivity is needed within a compact form factor. The inclusion of CAN and LIN interfaces makes it suitable for networked applications. Consider the 192 kB RAM size relative to application complexity to ensure sufficient resources for real-time operations.

Part Context

This microcontroller belongs to the ATSAME51 series, designed for high-performance embedded applications. It shares architectural similarities with other members of the family but differs in memory capacity and package options. The G19A designation typically indicates specific memory and I/O configurations within the product line.

Replacement Considerations

Check for direct substitutes within the ATSAME51 family such as ATSAME51J19A or ATSAMD51J19A, ensuring package and pin compatibility. Verify if alternative packages like TQFP are acceptable for your board layout.