ATSAM3N1AB-AU

Overview

The ATSAM3N1AB-AU is a microcontroller from the Microchip SAM3N series, built on the ARM Cortex-M3 core. It features 64 kB of embedded Flash memory and 8 kB of SRAM. The device operates at a maximum clock frequency of 48 MHz with a supply voltage range of 1.62 V to 3.6 V. It includes an internal oscillator, 10-bit ADCs, and multiple communication interfaces including I2C, SPI, UART/USART, and IrDA. The component is housed in a 100-LQFP package.

Feature Summary

• Integrates ARM Cortex-M3 processor for efficient code execution
• Includes embedded Flash and SRAM for data storage
• Supports various serial communication protocols
• Features integrated analog-to-digital conversion

Applications

• General-purpose embedded control systems
• Industrial automation controllers
• Consumer electronics devices

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm pinout and package dimensions. Ensure compatibility with existing board layouts by checking the 100-LQFP footprint. Confirm operating temperature ranges match application requirements. Validate that the 1.62 V to 3.6 V supply range aligns with system power design.

Selection Notes

Select this model when a balance of moderate memory capacity and low power consumption is required. The 48 MHz speed suits applications not needing high-performance processing. Verify interface availability meets connectivity needs. Consider the LQFP package for surface-mount assembly constraints.

Part Context

This part belongs to the SAM3N family, designed for cost-sensitive applications requiring ARM Cortex-M3 performance. It offers a compact solution for embedded tasks with limited peripheral counts compared to larger series members.

Replacement Considerations

Consult official substitution lists for verified equivalents. Cross-reference pinouts and electrical characteristics before replacing.