ATSAM3N00AA-AUR

Overview

The ATSAM3N00AA-AUR 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 supports a supply voltage range of 1.62V to 3.6V and includes an internal oscillator. Connectivity options include I2C, IrDA, SPI, and UART/USART interfaces. It provides 34 general-purpose I/O pins and integrates peripherals such as DMA, PWM, WDT, POR, and BOD. The component is housed in a 48-LQFP package with dimensions of 7x7mm.

Feature Summary

• Integrates ARM Cortex-M3 processor with Thumb-2 instruction set support
• Includes embedded voltage regulator for single-supply operation
• Features pin-to-pin compatibility with SAM7S and SAM3S legacy products
• Provides hardware security via Power-on-Reset and Brown-out detection

Applications

• Industrial control systems requiring low power consumption
• Consumer electronics utilizing serial communication protocols
• Embedded applications needing reliable reset mechanisms
• Cost-sensitive IoT devices with limited memory requirements

Procurement Notes

Verify the specific suffix 'AUR' indicates tape and reel packaging when sourcing components. Confirm that the manufacturer designation aligns with Microchip Technology following historical acquisitions. Ensure compliance with RoHS and REACH directives by checking current environmental declarations. Validate the operating temperature range against your specific application environment requirements before finalizing procurement decisions.

Selection Notes

Select this model when 16KB of program storage is sufficient for the target firmware. Choose the LQFP-48 package for surface-mount assembly constraints. Consider the internal oscillator if external crystal resources are limited. Evaluate the 48MHz speed against processing demands. Verify that the 3.3V I/O voltage levels match the system logic requirements.

Part Context

This component belongs to the SAM3N series of microcontrollers designed for low-power applications. The series utilizes the ARM Cortex-M3 architecture to balance performance and energy efficiency. It serves as a successor to older AVR-based solutions while maintaining compatibility with existing development frameworks. The product line focuses on cost-effective embedded control solutions.

Replacement Considerations

ATSAM3N00AA-AU offers identical specifications in tray packaging. ATSAM3N0AA-AUR provides increased memory capacity within the same package. ATSAM3N0CA-AU represents a newer generation variant with enhanced features.