ATSAM3N2AA-AU

MCU 32Bit SAM3N ARM Cortex M3 RISC 128KB Flash 1.8V/3.3V 48Pin LQFP

The is a SMART SAM3N2A series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M3 RISC processor. It operates at a maximum speed of 48MHz and features 128kB of flash memory and 16kB of SRAM. The peripheral set includes an uSART, two UARTs, two SPIs, two TWIs I²C, PWM timer, six 16-bit timers, RTC and a 10-bit ADC. The SAM3N2A is ready for capacitive touch thanks to the Atmel QTouch® library, offering an easy way to implement buttons, wheels and sliders. It operates from 1.62 to 3.6V. The SAM3N2A is pin-to-pin compatible with the SAM3S2A. It is ready for capacitive touch with QTouch library, offering an easy way to implement buttons, wheels and sliders. The real-time event management allows peripherals to receive, react to and send events in active and sleep modes without processor intervention.

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ARM Cortex-M3 revision 2.0 running at up to 48MHz

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Thumb®-2 instruction set

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24-bit SysTick counter

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Nested vector interrupt controller

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Embedded voltage regulator for single supply operation

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Power-on-reset POR, brown-out detector BOD and watchdog for safe reset

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3 to 20MHz Quartz or ceramic resonator oscillators

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High precision factory trimmed internal RC oscillator with 4MHz default frequency

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Slow clock internal RC oscillator as permanent low-power mode device clock

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One PLL up to 130MHz for device clock

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Sleep, wait and backup modes

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Two 2-wire UARTs

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Two 2-wire Interfaces I²C compatible

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One SPI

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32-bit low-power Real-time Timer RTT

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Low-power real-time clock RTC with calendar and alarm

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Register write protection