ATSAM3S4BA-MU

Overview

The ATSAM3S4BA-MU is an ARM microcontroller from the SAM3S series, featuring a 32-bit ARM Cortex-M3 core. It integrates 256 KB of flash memory and 48 KB of SRAM. The device supports a maximum clock frequency of 64 MHz and includes a 12-bit ADC. It offers 47 I/O pins and operates within a supply voltage range of 1.62 V to 3.6 V. The component is housed in a QFN-64 package and is rated for industrial temperature operation.

Feature Summary

• Integrates a 32-bit ARM Cortex-M3 processor core for efficient code execution.
• Includes on-chip non-volatile flash memory and static RAM for program and data storage.
• Supports multiple communication interfaces including USB, SPI, UART, and I2C.
• Features a 12-bit analog-to-digital converter for signal acquisition.

Applications

• Industrial control systems
• Consumer electronics devices
• Medical equipment
• Smart home appliances

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature grade match the design requirements. Ensure the component meets RoHS compliance standards if required by the target market regulations. Cross-reference the manufacturer datasheet for detailed electrical characteristics and pinout configurations before finalizing procurement decisions.

Selection Notes

Select this part when a balance of moderate memory capacity and low power consumption is needed. The 64 MHz performance suits applications requiring real-time processing without excessive energy use. Consider the available I/O count and interface options to ensure compatibility with peripheral requirements.

Part Context

This component belongs to the Microchip SAM3S family, which utilizes the ARM Cortex-M3 architecture. The series is designed for cost-sensitive applications requiring reliable performance. The ATSAM3S4BA variant specifically provides 256 KB of flash, positioning it between smaller and larger memory options in the lineup.

Replacement Considerations

Check for other SAM3S variants with different memory sizes or packages. Verify pin compatibility if substituting with similar MCUs from the same family. Ensure the replacement supports the required operating voltage and temperature range.