ATSAM4N8CA-AUR

Overview

The ATSAM4N8CA-AUR is a 32-bit microcontroller from the Microchip SAM4N series, featuring an ARM Cortex-M4 core with single-precision floating-point unit. It integrates 512 kB of Flash memory and 64 kB of SRAM. The device operates at a maximum clock frequency of 100 MHz and supports a supply voltage range of 1.62 V to 3.6 V. It includes an 8-channel 10-bit ADC, six timers/counters, and standard communication interfaces such as I2C, SPI, and UART/USART. The component is housed in a 100-LQFP package and is rated for industrial temperature operation between -40°C and +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor core with hardware floating-point support for efficient signal processing.
• Provides non-volatile program storage via 512 kB of self-programming Flash memory.
• Includes multiple peripheral controllers for serial communication and analog-to-digital conversion.
• Features low-power management capabilities suitable for battery-operated applications.

Applications

• Industrial control systems requiring moderate processing power
• Consumer electronics with display interface requirements
• Medical devices needing precise analog signal acquisition
• Smart home automation controllers

Procurement Notes

Verify the specific suffix 'AUR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 'C' designation aligns with the intended industrial temperature grade specifications for your operational environment. Ensure compatibility with existing PCB footprints for the 100-LQFP package before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing performance and peripheral integration is needed without the complexity of higher-end SAM4S or SAM4E series devices. The Cortex-M4 core offers superior computational efficiency compared to Cortex-M3 alternatives. Consider the 100-pin count for sufficient I/O availability while maintaining a compact form factor relative to larger packages.

Part Context

This part belongs to the SAM4N family, designed for cost-sensitive applications requiring ARM Cortex-M4 performance. It serves as a bridge between lower-performance Cortex-M0/M3 devices and more feature-rich high-end microcontrollers. The series emphasizes energy efficiency and integrated peripherals for general-purpose embedded control tasks.

Replacement Considerations

Consult official Microchip documentation for verified pin-compatible or functionally equivalent substitutes within the SAM4N or SAM4L families. Cross-series migration may require firmware adaptation due to differences in peripheral registers and clock configurations.