ATSAME54N19A-AUT-EFP

Overview

The ATSAME54N19A-AUT-EFP is a 32-bit microcontroller from the Microchip SAM E54 series, featuring an ARM Cortex-M4F core with a floating-point unit. It operates at a maximum frequency of 120 MHz and includes 512 KB of flash memory and 96 KB of SRAM. The device supports a supply voltage range of 1.71 V to 3.63 V and is housed in a 100-TQFP package. It offers 81 I/O pins and integrates multiple communication interfaces including CANbus, Ethernet, I2C, SPI, UART/USART, and USB.

Feature Summary

• Integrated ARM Cortex-M4F processor with hardware floating-point capabilities for efficient signal processing.
• Comprehensive connectivity suite supporting automotive and industrial protocols such as CANbus, LINbus, and Ethernet.
• High-resolution analog conversion with 28 channels of 12-bit ADC and two 12-bit DACs.
• Automotive-grade qualification ensuring reliability under extended temperature conditions.

Applications

• Automotive body control modules and gateway applications
• Industrial motor control systems requiring precise timing
• Smart energy metering devices with high-accuracy analog sensing
• IoT edge nodes utilizing secure connectivity features

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct suffix alignment. Confirm that the AUT designation matches the required AEC-Q100 grade and -40°C to +85°C operating temperature range. Cross-reference the specific tape-and-reel packaging requirements with your assembly line specifications before finalizing orders.

Selection Notes

Select this component when a balance of moderate memory capacity and robust automotive connectivity is required. The 100-pin TQFP package suits designs needing fewer I/O lines than the 128-pin variant but retaining full peripheral functionality. Ensure system power rails align with the specified 1.71 V to 3.63 V input range for stable operation.

Part Context

This MCU belongs to the SAM E54 family, designed for cost-sensitive automotive and industrial markets. It shares architectural similarities with the ATSAME54P20A but differs in memory size and pin count. The family emphasizes security features and low-power modes suitable for battery-operated or energy-constrained embedded environments.

Replacement Considerations

The ATSAME54N19A-AU serves as a non-automotive grade alternative within the same package. For higher performance needs, consider the ATSAME54P20A-AUT-EFP which offers increased memory and additional I/O lines while maintaining the same automotive qualification and core architecture.