ATSAM3N0AA-MUR

Overview

The ATSAM3N0AA-MUR is a 32-bit microcontroller from the Microchip SAM3N series, featuring an ARM Cortex-M3 core operating at up to 48MHz. It integrates 16KB of embedded Flash memory and 4KB of SRAM within a 48-QFN package. The device 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, with 34 general-purpose I/O pins available for system integration.

Feature Summary

• Integrates an ARM Cortex-M3 processor with Thumb-2 instruction set support
• Includes embedded voltage regulator for single-supply operation
• Provides hardware security features such as Power-on-Reset and Brown-out Detection
• Supports Direct Memory Access for efficient data transfer management

Applications

• Industrial control systems requiring low power consumption
• Consumer electronics utilizing serial communication protocols
• Smart metering applications with analog input requirements
• Portable devices needing compact surface-mount packaging

Procurement Notes

Verify the specific suffix 'MUR' corresponds to the 48-QFN package and reel tape configuration during sourcing. Confirm that the manufacturer designation aligns with current Microchip Technology standards rather than legacy Atmel branding. Ensure environmental compliance documentation matches the intended deployment region requirements.

Selection Notes

Select this component when a balance of moderate code storage and minimal pin count is required for cost-sensitive designs. The internal oscillator simplifies board layout by eliminating external crystal components. Consider the 48MHz speed limit against higher-performance SAM3S variants if complex real-time processing is necessary.

Part Context

This part belongs to the SAM3N family, designed as a low-cost alternative to the SAM3S series. It shares pin compatibility with legacy SAM7S products while offering modern ARM architecture benefits. The QFN package variant targets applications where space constraints preclude larger LQFP footprints.

Replacement Considerations

ATSAM3N00AA-MUR serves as a direct equivalent for identical specification requirements.