ATSAM4N8AA-AUR

Overview

The ATSAM4N8AA-AUR is an ARM-based microcontroller from the SAM4N series, manufactured by Microchip Technology. It integrates a 32-bit ARM Cortex-M4 core operating at a maximum clock frequency of 100 MHz. The device provides 512 kB of Flash program memory and 64 kB of SRAM data RAM. It features a 10-bit ADC with 8 channels and supports multiple communication interfaces including I2C, SPI, and UART. The unit operates within a supply voltage range of 1.62 V to 1.95 V and functions across an industrial temperature range of -40°C to +85°C. It is housed in a 48-pin LQFP package.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for efficient 32-bit execution
• Includes on-chip Flash memory and SRAM for code and data storage
• Supports standard serial communication protocols such as I2C, SPI, and UART
• Features integrated analog-to-digital conversion capabilities

Applications

• Industrial control systems requiring low power consumption
• Consumer electronics utilizing ARM Cortex-M4 architecture
• Embedded applications needing reliable serial communication interfaces

Procurement Notes

Verify the specific suffix 'AUR' against official Microchip documentation to confirm tape and reel packaging status, as some sources list this variant under tray packaging. Ensure the voltage range and package type match your design requirements before ordering. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when a balance of processing power and peripheral count is needed for space-constrained designs. The 48-pin LQFP package offers a compact footprint suitable for surface mount applications. Consider the 100 MHz performance limit and 512 kB memory capacity relative to software complexity. Verify that the 1.62 V to 1.95 V supply requirement aligns with the system power budget.

Part Context

This microcontroller belongs to the SAM4N family, which targets cost-sensitive embedded applications. The series utilizes the ARM Cortex-M4 core, providing DSP instructions and a floating-point unit. The ATSAM4N8AA variant specifically denotes the 512 kB Flash configuration within this lineup, designed for general-purpose control tasks.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified pin-compatible or functionally equivalent alternatives within the SAM4N or SAM4S families. Do not assume direct interchangeability with other ARM MCUs without verifying register compatibility and peripheral mapping.