ATSAM3N2CA-AU

Overview

The ATSAM3N2CA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N series. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device operates at a maximum clock frequency of 48MHz with a supply voltage range of 1.62V to 3.6V. It includes an 8-channel 10-bit ADC and supports interfaces such as I2C, SPI, UART/USART, and IrDA. The component is housed in a 100-LQFP package and is rated for industrial temperature operation from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution.
• Provides non-volatile program storage via embedded Flash memory.
• Supports multiple communication protocols including serial peripheral and universal asynchronous receiver-transmitter interfaces.
• Includes analog-to-digital conversion capabilities for sensor interfacing.

Applications

• Industrial control systems requiring robust processing
• Consumer electronics utilizing low-power microcontrollers
• Embedded applications with serial communication needs

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pin count and voltage levels. Cross-reference the datasheet for any recent production lifecycle notices or assembly site changes that may affect long-term availability.

Selection Notes

Select this component when a balance of moderate Flash capacity and standard connectivity is required within a 48MHz performance envelope. Compare against other SAM3N variants if higher I/O counts or different package sizes are needed. Confirm that the 10-bit ADC resolution meets application accuracy requirements before finalizing the design.

Part Context

This part belongs to the SAM3N family, which targets cost-sensitive applications. It shares architectural similarities with other Cortex-M3 devices but offers specific memory and peripheral configurations tailored for general-purpose embedded tasks. The manufacturer provides development tools and software frameworks to support integration into various system designs.

Replacement Considerations

Consult official substitution lists for equivalent parts within the SAM3N series. Verify pinout compatibility and electrical specifications before replacing existing components in established designs.