ATSAME51N19A-AF

Overview

The ATSAME51N19A-AF is an automotive-grade ARM microcontroller from the SAM E51 family, manufactured by Microchip Technology. It features an ARM Cortex-M4F core operating at a maximum clock frequency of 120 MHz. The device integrates 512 kB of program memory and 192 kB of data RAM. It provides 81 general-purpose I/O pins and includes a 12-bit ADC. The unit operates within a voltage range of 1.71 V to 3.63 V and supports an extended industrial temperature range from -40°C to +125°C. It is housed in a TQFP-100 package.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards for robust performance in demanding environments.
• Integrated floating-point unit (FPU) within the ARM Cortex-M4F core for efficient mathematical processing.
• Comprehensive connectivity suite including USB, CAN, SPI, I2C, and USART interfaces.

Applications

• Automotive infotainment systems
• Advanced driver assistance systems (ADAS)
• Industrial motor control applications

Procurement Notes

Verify that the specific suffix 'AF' corresponds to the TQFP-100 package variant when sourcing components. Confirm that the part meets the required AEC-Q100 qualification level for your specific automotive application. Ensure compatibility with the intended operating temperature range of -40°C to +125°C during component selection.

Selection Notes

Select this component when an automotive-certified MCU with significant flash memory and high-speed processing is required. The 120 MHz Cortex-M4F core offers sufficient performance for complex control algorithms. Consider the 81 available I/Os and extensive peripheral set for system integration needs.

Part Context

This microcontroller belongs to the SAM E51 series, designed specifically for automotive and industrial markets. It shares architectural similarities with other SAM E5x devices but is distinguished by its specific memory configuration and automotive qualification status. The device serves as a central processing unit for connected vehicle and smart industrial solutions.

Replacement Considerations

Consult official Microchip documentation for verified cross-reference part numbers. Substitutions must maintain identical automotive qualification levels and pinout compatibility.

FAQ

What is the maximum operating temperature for the ATSAME51N19A-AF?

The device supports an extended industrial temperature range up to +125°C.

Does this microcontroller include a hardware floating-point unit?

Yes, the ARM Cortex-M4F core includes a dedicated hardware floating-point unit.