ATSAM3S2BA-MUR

Overview

The ATSAM3S2BA-MUR is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3S series. It features 128KB of in-system programmable flash memory and 32KB of SRAM. The device operates at a maximum clock frequency of 64MHz with a supply voltage range of 1.62V to 3.6V. It is housed in a 64-pin QFN package and supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution.
• Includes built-in analog-to-digital converters and digital-to-analog converters.
• Supports multiple communication interfaces including USB, SPI, I2C, and USART.
• Features direct memory access controllers for high-speed data transfer.

Applications

• Industrial control systems requiring robust processing capabilities
• Consumer electronics utilizing USB connectivity
• Medical devices needing precise analog signal conversion
• Automotive instrumentation within specified temperature ranges

Procurement Notes

Verify the specific suffix MUR indicates tape and reel packaging when sourcing components. Confirm that the industrial temperature grade matches application requirements. Ensure compatibility with existing PCB footprints for the 64-lead QFN package. Check for any recent production change notices regarding assembly sites or material composition updates.

Selection Notes

Select this component when a balance of moderate flash capacity and rich peripheral set is required. The 64MHz speed suits applications not demanding ultra-high performance but needing low power consumption. Consider the QFN package constraints for thermal management and board space. Compare against other SAM3S variants if higher memory or different pin counts are needed.

Part Context

This part belongs to the Microchip SAM3S family, designed for cost-sensitive embedded applications. It shares architectural similarities with other SAM3S devices but differs in memory size and package options. The series targets markets such as home appliances, lighting controls, and simple human-machine interfaces.

Replacement Considerations

ATSAM3S2BA-AU offers identical electrical specifications in a LQFP package. ATSAM3S2AA-AU provides similar performance in a smaller 48-pin LQFP footprint. Verify pinout compatibility before substituting packages.