ATSAM4N16CA-AU

Overview

The ATSAM4N16CA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 100MHz. It features 1MB of in-system programmable Flash memory and 80KB of SRAM. The device includes an ADC with 17 channels of 10-bit resolution and one 10-bit DAC. It supports interfaces including I2C, SPI, UART/USART, and IrDA. Powered by a supply voltage ranging from 1.62V to 3.6V, it operates within a temperature range of -40°C to +85°C and is housed in a 100-LQFP package.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for efficient code execution
• Provides substantial non-volatile storage via 1MB Flash memory
• Includes multiple analog conversion capabilities with 17-channel ADC and single-channel DAC
• Supports standard serial communication protocols for peripheral connectivity

Applications

• Industrial control systems requiring robust processing
• Smart metering applications
• Consumer electronics with low power requirements
• Medical devices needing precise analog signal acquisition

Procurement Notes

Verify the specific suffix 'AU' corresponds to the 100-LQFP package and industrial temperature grade (-40°C to +85°C). Confirm that the manufacturer's current datasheet reflects any recent Product Change Notices (PCNs) regarding marking or assembly location changes. Ensure compatibility with existing board layouts for the 100-pin LQFP footprint before finalizing procurement orders.

Selection Notes

Select this component when a balance of high Flash capacity and moderate RAM is required for complex firmware. The 100MHz clock speed suits applications needing faster instruction throughput than lower-end Cortex-M0 devices. Consider the 10-bit ADC resolution if higher precision is not critical, as other series offer 12-bit options. Verify interface needs against available peripherals like SSC or USB, which may be absent in this specific SAM4N variant.

Part Context

This part belongs to the Microchip SAM4N series, designed for cost-sensitive embedded applications. It utilizes the same core architecture as the SAM4S series but with optimized memory configurations and reduced peripheral sets. The series targets markets where power efficiency and sufficient processing power are prioritized over high-speed external bus interfaces found in larger SAM4C or SAM4E devices.

Replacement Considerations

The ATSAM4N16BA-AUR is a related variant within the same family. Verify pinout compatibility and software register mapping before substitution. Note that suffix differences may indicate variations in packaging or temperature rating.