ATSAM4S4AA-AU

MCU 32Bit SAM4S ARM Cortex M4 RISC 256KB Flash 1.2V/3.3V 48Pin LQFP Tray

The is a SMART SAM4S series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M4 RISC processor. It operates at a maximum speed of 120MHz and features 256kB of flash memory and 64kB of SRAM. Peripheral set includes a full-speed USB device port with embedded transceiver, a high-speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller to connect to SRAM, PSRAM, NOR flash, LCD Module and NAND flash, 2 USARTs, 2 UARTs, 2 TWIs, 3 SPIs, an I²S, as well as a PWM timer, two 3- channel general-purpose 16-bit timers with stepper motor and quadrature decoder logic support, an RTC, a 12-bit ADC, a 12-bit DAC and an analog comparator. The device operate from 1.62V to 3.6V. It is ready for capacitive touch, offering native support for the Atmel QTouch® library for easy implementation of buttons, wheels and sliders. The real-time event management allows peripherals to receive, react to and send events in active and sleep modes.

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ARM Cortex-M4 with 2kB of cache running at up to 120MHz

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Memory protection unit MPU

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DSP Instruction set

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Thumb®-2 instruction set

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Pin-to-pin compatible with Atmel SAM7S, SAM3N and SAM3S MCUs

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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 operation

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3 to 20MHz Resonator oscillators

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RTC with Gregorian and Persian Calendar mode, waveform generation in low-power modes

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RTC counter calibration circuitry compensates for 32.768kHz crystal frequency inaccuracy

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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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Two PLLs up to 240MHz for device clock and for USB

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Temperature sensor

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Low-power tamper detection on two inputs

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Sleep, wait and backup modes

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32-bit Real-time timer and RTC with calendar, alarm and 32kHz trimming features

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256-bit General purpose backup registers GPBR

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One 2-channel 12-bit 1MSPS DAC

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One analog comparator with flexible input selection, selectable input hysteresis