ATSAM4S16CA-AUR

Overview

The ATSAM4S16CA-AUR is a 32-bit microcontroller from the Microchip SAM4S series, built on the ARM Cortex-M4 core. It features 1 MB of in-system programmable flash memory and 128 KB of SRAM. The device operates at a maximum clock frequency of 120 MHz with a supply voltage range of 1.62 V to 3.6 V. It includes sixteen 12-bit ADC channels and two 12-bit DAC channels. Connectivity options include USB, SPI, I2C, USART, SSC, IrDA, and EBI/EMI interfaces. The component is housed in a 100-LQFP package and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
• Provides extensive connectivity through integrated USB controller, multiple serial communication interfaces, and external bus interface.
• Includes high-resolution analog peripherals with sixteen 12-bit ADCs and dual 12-bit DACs for precise signal handling.

Applications

• Industrial control systems requiring robust peripheral integration
• Medical devices needing high-precision analog-to-digital conversion
• Consumer electronics utilizing USB connectivity and display interfaces

Procurement Notes

Verify the specific suffix 'AUR' indicates tape-and-reel packaging when sourcing components. Confirm that the manufacturer part number matches exactly to ensure correct pinout and electrical specifications. Check for recent Product Change Notifications regarding assembly location or material composition updates. Ensure compatibility with existing PCB footprints for the 100-LQFP package before finalizing procurement orders.

Selection Notes

Select this model when 1 MB of flash memory and 128 KB of RAM are required for complex firmware applications. Choose the ATSAM4S16CA-AUR over lower-capacity variants if additional storage for data logging or large codebases is necessary. Consider the 120 MHz performance level for applications demanding real-time processing capabilities within the SAM4S family constraints.

Part Context

This component belongs to the SAM4S series of microcontrollers designed for cost-sensitive applications requiring ARM Cortex-M4 performance. It shares architectural similarities with other SAM4S devices but offers specific memory configurations. The series targets embedded applications where balance between processing power, peripheral richness, and manufacturing cost is critical for commercial product development.

Replacement Considerations

ATSAM4S16CA-AU serves as the tray-packaged equivalent with identical electrical characteristics. ATSAM4S4CA-AUR provides a lower-memory alternative within the same package and series. Verify pin compatibility and software library support when substituting with these related part numbers.