ATSAM4N16CA-AUR

Overview

The ATSAM4N16CA-AUR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 100 MHz. It features 1 MB of in-system programmable Flash memory and 80 KB of SRAM. The device includes an internal oscillator and supports supply voltages from 1.62 V to 3.6 V. Connectivity options include I2C, IrDA, SPI, and UART/USART interfaces. It provides 79 general-purpose I/O pins and integrates peripherals such as DMA, PWM, WDT, and brown-out detection/reset circuits.

Feature Summary

• Integrates ARM Cortex-M4 processor with single-cycle multiplication and hardware divide for efficient signal processing.
• Includes multiple communication interfaces including SPI, I2C, USART, and IrDA for versatile system connectivity.
• Features integrated analog-to-digital converters and pulse width modulation units for sensor interfacing and control applications.

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power ARM architectures
• Smart metering devices needing secure data handling

Procurement Notes

Verify the package type and suffix against official Microchip documentation, as the 'AUR' suffix typically indicates tape and reel packaging which may differ from standard tray distributions. Confirm the specific revision level and manufacturing date codes to ensure compatibility with existing design files. Cross-reference the part number with the latest SAM4N series product brief to validate pinout and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a balance of high-performance processing and extensive peripheral support is required within a compact form factor. The 100 MHz Cortex-M4 core offers significant computational power compared to lower-speed alternatives. Ensure the application can accommodate the 100-pin LQFP package dimensions and that the voltage range aligns with the system's power supply architecture.

Part Context

This microcontroller belongs to the SAM4N series, designed for cost-sensitive applications requiring ARM Cortex-M4 performance. It shares architectural similarities with other SAM4 variants but is optimized for specific memory and peripheral configurations. The series targets markets demanding reliable embedded control with established software support frameworks.

Replacement Considerations

Consult the SAM4N family datasheet for direct pin-compatible or functionally equivalent alternatives. Verify if other suffixes like 'AU' (tray) meet packaging requirements. Check for newer revisions within the same series that may offer updated assembly locations or minor feature enhancements without altering the core functionality.