ATSAM3N1AA-MU

Overview

The ATSAM3N1AA-MU is a Microchip Technology microcontroller from the SAM3N series, featuring an ARM Cortex-M3 core. It integrates 64 kB of Flash program memory and 8 kB of SRAM data memory. The device operates at a maximum clock frequency of 48 MHz and supports a supply voltage range of 1.62 V to 3.6 V. It provides 79 general-purpose I/O pins and includes multiple communication interfaces such as SPI, UART, and I2C. The component is housed in a QFN-48 package and is rated for industrial operating temperatures between -40°C and +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core with hardware multiply and divide instructions.
• Includes on-chip Flash memory for non-volatile code storage and SRAM for runtime data.
• Supports multiple serial communication protocols including SPI, UART, and I2C.
• Features integrated analog-to-digital converters and pulse width modulation peripherals.

Applications

• Industrial control systems requiring robust processing capabilities
• Consumer electronics devices utilizing low-power ARM architectures
• Embedded applications needing multiple serial communication interfaces

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-48 package and industrial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification. Cross-reference part numbers with current Microchip product lifecycle status to confirm availability.

Selection Notes

Select this component for designs requiring a balance of processing power and peripheral integration within a compact footprint. Compare against other SAM3N variants based on required Flash and RAM sizes. Verify that the 48 MHz clock speed meets real-time processing requirements. Ensure the QFN-48 package fits the PCB layout constraints and thermal management strategy.

Part Context

This MCU belongs to the SAM3N family, designed for cost-sensitive embedded applications. It shares architectural similarities with other Cortex-M3 devices but offers specific memory and pin configurations tailored for space-constrained designs. The series emphasizes energy efficiency and peripheral richness for general-purpose microcontroller tasks.

Replacement Considerations

Consult Microchip documentation for direct pin-compatible alternatives within the SAM3N series. Verify functional equivalence regarding memory size and peripheral sets before substitution. Check for any changes in package dimensions or electrical characteristics if considering cross-family replacements.