ATSAME54P19A-AUT

Overview

The ATSAME54P19A-AUT is a 32-bit microcontroller from the Microchip SAM E54 family, built on the ARM Cortex-M4F core. It operates at a maximum frequency of 120 MHz and includes 512 kB of flash memory and 192 kB of SRAM. The device features 99 general-purpose I/O pins and supports a supply voltage range of 1.71 V to 3.63 V. It integrates multiple communication interfaces including CANbus, Ethernet, I2C, SPI, USART, and USB. The component is qualified under AEC-Q100 standards for automotive applications and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Automotive-grade reliability certified by AEC-Q100 qualification standards
• Integrated floating-point unit (FPU) within the ARM Cortex-M4F processor core
• Comprehensive connectivity suite supporting Ethernet, CANbus, LINbus, and USB protocols
• High-resolution analog conversion capabilities with 32-channel 12-bit ADCs

Applications

• Automotive body control modules requiring robust communication buses
• Industrial motor drives utilizing precise analog sensing and PWM control
• Smart energy metering systems demanding high accuracy and low power operation
• Medical equipment interfaces needing reliable data transmission and processing

Procurement Notes

Verify the specific suffix codes against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board designs regarding pinout and voltage levels. Check for recent Product Change Notifications (PCNs) affecting packaging or manufacturing sites. Confirm that the AEC-Q100 qualification status meets your specific project requirements. Validate lead times through authorized distributors as availability may fluctuate based on production schedules.

Selection Notes

Select this component when automotive certification is mandatory alongside high-performance computing needs. Compare memory sizes against other SAM E54 variants if larger storage is required. Consider the 128-TQFP package constraints for PCB layout and thermal management. Evaluate peripheral availability such as Ethernet MAC or CAN FD controllers against application demands. Assess power consumption profiles across different operating modes for battery-sensitive designs.

Part Context

This part belongs to the SAM E54 series, designed for cost-effective yet powerful embedded solutions. It shares architectural similarities with the SAM D5x family but adds automotive qualification and enhanced connectivity options. The series targets applications requiring deterministic real-time performance with extensive peripheral integration. Developers often utilize the Atmel START configuration tool for initial setup and driver generation.

Replacement Considerations

Consult Microchip's official cross-reference guides for verified substitutes. Alternative parts within the same SAM E54 family may offer different memory capacities or package options. Ensure any replacement maintains AEC-Q100 compliance if automotive use is intended. Verify pin-to-pin compatibility before transitioning to avoid redesign efforts.