Microchip Technology 64-LQFP ATSAM3N4BA-AU

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The part number ATSAM3N4BA-AU refers to a microcontroller unit (MCU) from Atmel, now Microchip Technology. It belongs to the SAM3N series, which features ARM Cortex-M3 core architecture for high-performance, low-power applications. This specific model offers 4KB of flash memory and is likely supplied in an industrial or automotive grade package with advanced AU qualifications, indicating it meets stringent quality and reliability standards for extended temperature ranges and harsh environments.