ATSAM3N1AB-MU

Overview

The ATSAM3N1AB-MU is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N family. It features 64 KB of in-system programmable Flash memory and 8 KB of SRAM. The device operates at a maximum clock frequency of 48 MHz and supports an operating voltage range of 1.62 V to 3.6 V. It includes multiple communication interfaces such as SPI, I2C, and UART/USART, along with various timers and analog peripherals.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for high-performance processing.
• Provides non-volatile Flash memory for code storage and data retention.
• Supports low-power operation within a wide voltage supply range.
• Includes versatile peripheral sets for serial communication and control.

Applications

• Industrial automation controllers
• Smart grid metering devices
• Medical equipment control systems
• Building and home automation hubs

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pinout and electrical specifications before procurement.

Selection Notes

Select this component when a balance of moderate Flash capacity and low power consumption is required. Compare pin counts and peripheral availability against other SAM3N variants to ensure sufficient I/O resources for the target application interface requirements.

Part Context

This part belongs to the SAM3N series, designed for cost-sensitive applications requiring ARM Cortex-M3 performance. It serves as a migration path from older AVR or ARM7 architectures, offering enhanced connectivity and lower power consumption compared to legacy solutions.

Replacement Considerations

Consult official substitution lists for direct pin-compatible alternatives within the SAM3N family. Verify that any substitute maintains identical Flash size, SRAM capacity, and package dimensions to ensure mechanical fit.