ATSAME54N19A-AF

Overview

The ATSAME54N19A-AF is a Microchip Technology microcontroller based on the ARM Cortex-M4F core. It features 512 kB of Flash program memory and 192 kB of SRAM data RAM. The device operates at a maximum clock frequency of 120 MHz and supports up to 81 I/O pins. It functions within a supply voltage range of 1.71 V to 3.6 V and withstands operating temperatures from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4F processor with hardware floating-point unit for efficient signal processing.
• Includes multiple communication interfaces such as CAN, Ethernet, USB, SPI, I2C, and USART.
• Features high-resolution analog-to-digital converters and digital-to-analog converters for precision control.

Applications

• Industrial automation controllers
• Smart energy metering systems
• Automotive body electronics

Procurement Notes

Verify the specific suffix 'AF' against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the TQFP-100 configuration. Confirm that the selected variant meets all required environmental and electrical specifications for the target application before finalizing procurement.

Selection Notes

Select this component when a balance of processing power and connectivity is required. The 120 MHz speed suits real-time control tasks. Verify that the 512 kB memory capacity accommodates firmware requirements. Consider the 81 I/O count for peripheral integration needs. Check if the -40°C to +85°C range suffices for the deployment environment.

Part Context

This part belongs to the SAM E54 family of microcontrollers designed for industrial and automotive applications. It offers robust security features and low-power modes. The series integrates various peripherals to reduce external component count. It targets cost-sensitive designs requiring reliable performance in demanding environments.

Replacement Considerations

Consult official cross-reference guides for compatible alternatives. Verify pinout and register compatibility before substitution. Ensure equivalent memory sizes and interface availability in potential replacement parts.