ATSAM3N00AA-AU

Overview

The ATSAM3N00AA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 48MHz. It features 16KB of embedded Flash memory and 4KB of SRAM. The device includes an internal oscillator, eight 10-bit ADC channels, and supports interfaces such as I2C, SPI, UART/USART, and IrDA. It operates within a voltage range of 1.62V to 3.6V and functions between -40°C and +85°C in a 48-LQFP package.

Feature Summary

• Integrates an ARM Cortex-M3 processor with Thumb-2 instruction set support for efficient code execution.
• Includes built-in power management features such as an embedded voltage regulator, Power-on-Reset, Brown-out Detection, and Watchdog Timer.
• Provides multiple communication peripherals including DMA controllers and standard serial interfaces for system connectivity.

Applications

• Industrial control systems requiring low-power operation
• Consumer electronics utilizing ARM-based processing
• Embedded applications needing integrated analog-to-digital conversion

Procurement Notes

Verify the specific suffix 'AU' corresponds to the commercial temperature grade and tray packaging configuration. Confirm that the manufacturer designation aligns with Microchip Technology following the Atmel acquisition. Ensure compatibility with required development tools and software frameworks before finalizing procurement specifications.

Selection Notes

Select this component when a cost-effective ARM Cortex-M3 solution with moderate memory capacity is required. It serves as a pin-compatible alternative to legacy SAM7S devices. Consider the 48MHz clock speed and available I/O count against application complexity requirements.

Part Context

This part belongs to the SAM3N series of microcontrollers designed for general-purpose embedded applications. The series emphasizes low power consumption and small form factors while maintaining compatibility with existing ARM software ecosystems and hardware interfaces.

Replacement Considerations

ATSAM3N00AA-AUR offers identical electrical characteristics but utilizes tape-and-reel packaging instead of trays.