ATSAM3S2AA-AU

Overview

The ATSAM3S2AA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 64MHz. It features 128KB of in-system programmable flash memory and 32KB of static RAM. The device operates within a supply voltage range of 1.62V to 3.6V and supports an industrial temperature range from -40°C to +85°C. It is housed in a 48-LQFP package with 79 available I/O lines. Connectivity options include USB, SPI, I2C, USART, SSC, and MMC interfaces.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution
• Includes internal oscillator and comprehensive peripheral set including DMA and PWM
• Supports multiple communication protocols such as USB, SPI, and I2C

Applications

• Industrial control systems requiring robust MCU performance
• Consumer electronics utilizing low-power ARM architectures
• Embedded applications needing USB connectivity and flash storage

Procurement Notes

Verify the specific package type and pinout configuration against your PCB layout requirements before ordering. Confirm that the selected component meets the necessary environmental specifications for your intended operating conditions. Ensure compatibility with existing development tools and software frameworks provided by the manufacturer for seamless integration into your project.

Selection Notes

Select this model when a balance of processing power and peripheral richness is required in a compact form factor. The 48-pin LQFP package suits space-constrained designs. Consider the 64MHz clock speed and 128KB flash capacity for applications involving moderate data processing and code storage needs without external memory expansion.

Part Context

This component belongs to the SAM3S series of microcontrollers, designed for cost-sensitive embedded applications. The series utilizes the ARM Cortex-M3 architecture to deliver high performance with low power consumption. The ATSAM3S2AA-AU variant specifically targets designs requiring integrated USB capabilities and standard serial interfaces within a limited pin count.

Replacement Considerations

ATSAM3S2CA-AU offers similar core specifications but provides additional I/O lines and a larger 100-pin package option.