ATSAM3N00AA-MUR

Overview

The ATSAM3N00AA-MUR is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N series. It features 16KB of flash memory and 4KB of RAM. The device operates at a maximum speed of 48MHz with an internal oscillator. It supports a supply voltage range of 1.62V to 3.6V and includes eight 10-bit ADC channels. Connectivity options include I2C, IrDA, SPI, and UART/USART interfaces. The unit provides 34 general-purpose I/O pins and integrates peripherals such as DMA, PWM, WDT, POR, and brown-out detection/reset circuits.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution
• Includes built-in analog-to-digital conversion capabilities with multiple channels
• Supports standard serial communication protocols for peripheral interfacing
• Features hardware acceleration via Direct Memory Access (DMA) controller

Applications

• Battery-powered embedded systems requiring low voltage operation
• Industrial control modules utilizing serial communication interfaces
• Consumer electronics devices with limited pin count requirements
• Sensor interface nodes incorporating analog signal processing

Procurement Notes

Verify the specific suffix 'MUR' corresponds to the 48-QFN package and tape-and-reel packaging configuration. Confirm that the operating temperature range meets the -40°C to 85°C requirement for your application environment. Ensure compatibility with the 1.62V to 3.6V supply voltage specifications during system design validation.

Selection Notes

Select this component when a compact 48-pin QFN footprint is required alongside the SAM3N architecture. Consider this part if the application demands 16KB of program storage and 4KB of data RAM. Evaluate the 48MHz clock speed against processing requirements. Verify that the available 34 I/O lines satisfy the interface count needs without requiring additional multiplexing.

Part Context

This microcontroller is part of the Microchip SAM3N family, designed for cost-sensitive applications. The series utilizes the ARM Cortex-M3 core, balancing performance with power efficiency. The ATSAM3N00AA-MUR variant specifically offers the smaller QFN package option compared to LQFP alternatives, facilitating dense PCB layouts for portable or space-constrained electronic designs.

Replacement Considerations

ATSAM3N00AA-AU serves as a pin-compatible alternative in the LQFP-48 package. ATSAM3N00AA-AUR provides the same electrical specifications in a tape-and-reel LQFP format. These substitutes maintain identical core functionality but differ in physical package dimensions and mounting style.