ATSAME54N19A-AU

Overview

The ATSAME54N19A-AU is a 32-bit ARM Cortex-M4F microcontroller from the SAM E54 family, manufactured by Microchip Technology. It features a maximum clock frequency of 120 MHz and includes 512 kB of Flash program memory alongside 96 kB of SRAM data RAM. The device operates within a supply voltage range of 1.62 V to 3.63 V and supports an industrial temperature range from -40°C to +85°C. It provides 38 general-purpose I/O pins and integrates multiple communication interfaces including SPI, I2C, UART, USART, and USB. The MCU incorporates a 12-bit ADC with eight channels and is housed in a 100-pin LQFP package.

Feature Summary

• Integrates an ARM Cortex-M4F core with hardware floating-point unit for efficient digital signal processing.
• Includes high-speed USB 2.0 OTG controller supporting host, device, and peripheral modes.
• Features comprehensive connectivity options with multiple serial communication peripherals.
• Provides flexible analog input capabilities through integrated 12-bit ADC channels.

Applications

• Industrial control systems requiring robust real-time processing
• USB-enabled human-machine interface devices
• Smart energy metering applications
• Portable medical equipment

Procurement Notes

Verify the specific suffix 'AU' corresponds to the 100-pin LQFP package and industrial temperature grade during procurement. Confirm that the ordering part number matches the exact memory configuration of 512 kB Flash and 96 kB RAM. Ensure compatibility with required development tools such as Atmel Studio or compatible debuggers like ATMEL-ICE for programming and validation.

Selection Notes

Select this component when a balance of moderate memory capacity and high-speed processing is required. The 120 MHz performance suits applications needing fast response times without excessive power consumption. Consider the 100-pin form factor if sufficient I/O count is needed while maintaining a manageable footprint. Verify that the 1.62 V to 3.63 V operating range aligns with the system power architecture.

Part Context

This microcontroller belongs to the SAM E54 series, designed for low-power, high-performance embedded applications. It shares architectural similarities with other SAM E5x devices but offers specific memory and pin configurations. The series targets industries demanding reliable connectivity and processing power in compact packages.

Replacement Considerations

Consult official cross-reference guides for equivalent parts. Verify functional compatibility regarding pinout, memory size, and peripheral availability before substitution.