ATSAM3S2BA-MU

Overview

The ATSAM3S2BA-MU is an ARM microcontroller from the SAM3S series, featuring a 32-bit ARM Cortex-M3 core operating at a maximum clock frequency of 64 MHz. It integrates 128 kB of Flash program memory and 32 kB of SRAM data RAM. The device operates within a supply voltage range of 1.62 V to 1.9 V for digital logic and utilizes a 3.3 V analog supply. It is housed in a QFN-64 package and supports industrial temperature ranges.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M3 processor with hardware multiply and divide capabilities.
• Includes on-chip non-volatile Flash memory for code storage and static RAM for data handling.
• Provides multiple communication interfaces including I2C, SPI, and UART for peripheral connectivity.
• Features a 12-bit Analog-to-Digital Converter with multiple input channels for sensor interfacing.

Applications

• Industrial control systems requiring robust processing and reliable communication protocols.
• Consumer electronics devices utilizing low-power ARM-based architectures.
• Embedded applications needing precise analog signal acquisition via integrated ADCs.
• General-purpose microcontroller tasks involving serial data transmission and interface management.

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with required voltage levels and interface standards before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status through current datasheets.

Selection Notes

Select this component when a balance of moderate memory capacity and standard peripheral sets is required. Consider the QFN-64 package constraints for PCB layout and thermal management. Evaluate power consumption requirements against the specified voltage range. Compare with other SAM3S variants if larger memory or additional interfaces are necessary.

Part Context

This microcontroller belongs to the SAM3S family, designed for cost-sensitive applications requiring efficient code execution. It shares architectural similarities with other Cortex-M3 based MCUs but offers specific memory and peripheral configurations tailored for embedded control. The series emphasizes energy efficiency and performance per watt for portable and industrial uses.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the SAM3S series. Verify memory size and peripheral availability when considering cross-series replacements. Ensure software compatibility and register mapping differences are addressed during migration.