ATSAM3S2AA-MUR

Overview

The ATSAM3S2AA-MUR is a microcontroller unit based on the ARM Cortex-M3 core, belonging to the SAM3S family. It integrates 128KB of flash memory and 32KB of SRAM within a 48-pin QFN package. The device operates with a maximum CPU frequency of 64MHz and supports multiple communication interfaces including I2C, SPI, UART, USART, and USB. It functions at supply voltages ranging from 1.62V to 3.6V.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient instruction execution.
• Includes built-in flash program memory and static RAM for data storage.
• Supports various serial communication protocols for peripheral connectivity.

Applications

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

Procurement Notes

Verify the specific suffix 'MUR' against official Microchip documentation to confirm the tape-and-reel packaging configuration and industrial temperature range specifications. Ensure compatibility with existing PCB footprints for the 48-pin QFN EP package before procurement.

Selection Notes

Select this component when a balance of processing power and memory capacity is required for cost-sensitive applications. The 64MHz clock speed and 128KB flash are suitable for moderate complexity firmware tasks without requiring higher-end cores.

Part Context

This part belongs to the Microchip SAM3S series, which utilizes the ARM Cortex-M3 architecture. The series is designed for low-power, high-performance embedded applications. The 'AA' designation typically indicates specific memory configurations and interface sets within the family.

Replacement Considerations

ATSAM3S2AA-MU is a pin-compatible alternative in tray packaging. ATSAM3S2BA-MUR offers similar core features but in a different package type.