ATSAM3S2CA-AU

Overview

The ATSAM3S2CA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, manufactured by Microchip Technology. It operates at a maximum clock frequency of 64 MHz and includes 128 KB of flash memory and 32 KB of RAM. The device features an internal oscillator and supports a supply voltage range of 1.62 V to 3.6 V. It provides 79 general-purpose I/O pins and integrates multiple communication interfaces including USB, SPI, I2C, UART/USART, SSC, EBI/EMI, and SD/MMC card support. Analog capabilities include fifteen 10-bit or 12-bit ADC channels and two 12-bit DAC channels. The component is housed in a 100-LQFP package with dimensions of 14x14 mm and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution.
• Includes built-in USB interface and external bus interface for peripheral connectivity.
• Features integrated analog-to-digital and digital-to-analog converters for signal processing.
• Supports direct memory access and pulse width modulation for automated control tasks.

Applications

• Industrial control systems requiring robust peripheral management
• Consumer electronics utilizing USB connectivity
• Medical devices needing precise analog signal acquisition
• Smart home automation controllers

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding the 100-LQFP footprint. Confirm that the selected variant meets all regulatory requirements for the intended deployment environment before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required for cost-sensitive applications. The Cortex-M3 architecture offers sufficient performance for complex logic while maintaining low power consumption. Consider the available I/O count and memory size relative to software complexity to ensure optimal resource utilization during the design phase.

Part Context

This part belongs to the SAM3S series of microcontrollers designed for high-performance embedded applications. The series utilizes the ARM Cortex-M3 core to deliver efficient code execution. The ATSAM3S2CA-AU represents a specific configuration within this family, tailored for designs requiring moderate memory capacity and extensive connectivity options in a compact surface-mount package.

Replacement Considerations

Consult official substitution guides for compatible parts within the SAM3S family. Verify pinout compatibility and electrical specifications before replacing components in existing designs.