ATSAM3N2AA-MU

Overview

The ATSAM3N2AA-MU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum clock frequency of 48 MHz. It integrates 128 KB of Flash program memory and 16 KB of SRAM. The device features 47 general-purpose I/O pins and supports multiple communication interfaces including SPI, UART, USART, I2C, and IrDA. It operates within a supply voltage range of 1.62 V to 3.6 V and functions across an industrial temperature range of -40°C to +85°C. The component is housed in a 64-lead LQFP package.

Feature Summary

• Integrates an ARM Cortex-M3 processor with Thumb-2 instruction set support for efficient code execution.
• Includes built-in peripherals such as DMA channels, PWM timers, and watchdog timers for system control.
• Supports low-power operation modes including sleep, wait, and backup to optimize energy consumption.
• Features programmable analog-to-digital converters and digital-to-analog converters for signal processing.

Applications

• Industrial control systems requiring robust microcontroller performance
• Consumer electronics utilizing low-power embedded processing
• Smart home automation devices needing multiple communication interfaces

Procurement Notes

Verify the specific ordering suffix and package type against official Microchip documentation to ensure compatibility with design requirements. Confirm current product status, as availability may vary. Check for any environmental compliance certifications required for your region. Ensure that the selected variant matches the necessary voltage and temperature specifications for your application environment before procurement.

Selection Notes

Select this component when a balance of processing power and peripheral integration is needed for cost-sensitive applications. Consider the 48 MHz speed and 128 KB Flash capacity for moderate complexity firmware tasks. Evaluate the available I/O count and interface options against system connectivity needs. Compare power consumption characteristics in different operational modes against other members of the SAM3N family.

Part Context

This microcontroller belongs to the SAM3N series, designed for high-performance, low-power applications. It shares architectural similarities with other Cortex-M3 based MCUs but offers specific memory and peripheral configurations tailored for embedded control. The series emphasizes efficiency and ease of integration into various electronic designs.

Replacement Considerations

Consult official Microchip documentation for verified pin-compatible or functionally equivalent alternatives within the SAM3N family. Verify memory size, package dimensions, and electrical specifications before substitution. No direct substitute part numbers are confirmed in the provided data.