ATSAM3X8CA-AU

SMART SAM3X ARM® Cortex-M3 微控制器基于 ARM® Cortex®-M3 内核，Atmel® SMART SAM3X 基于闪存的微控制器 MCU 通过添加以太网、双 CAN 和高速 USB HS USB MiniHost 及设备（带片上物理层 PHY）来增强连接性。 该系列还包括 QTouch 电容式触摸支持、增强的安全性及低功耗。### ARM 微控制器，Atmel

The is a SMART SAM3X series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M3 RISC processor. It operates at a maximum speed of 84MHz and features 512kB of flash memory in 2 x 256kB banks and 96kB of SRAM in 64kB +32kB banks. Its highly-integrated peripheral set includes Ethernet, dual CAN, High Speed USB MiniHost and device with on-chip PHY, high-speed SD/SDIO/MMC and multiple USARTs, SPIs, TWIs I²C and one I²S. The SAM3X8C also features a 12-bit ADC/DAC, temperature sensor, 32-bit timers, PWM timer and RTC. The 16-bit external bus interface supports SRAM, PSRAM, NOR and NAND flash with error code correction. The Atmel QTouch® Library is available for the SAM3X8C for easy implementation of buttons, sliders and wheels. The device operates from 1.62 to 3.6V.

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ARM Cortex-M3 revision 2.0 running at up to 84MHz

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Memory protection unit MPU

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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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Quartz or ceramic resonator oscillators - 3 to 20MHz and optional 32.768kHz for RTC or device clock

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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 clock for device clock in low-power mode

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One PLL for device clock and one dedicated PLL for USB 2.0 high speed mini host/device

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Temperature sensor

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Sleep, wait and backup modes

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2 TWI I²C compatible, up to 6 SPIs, 1 SSC I²S, 1 HSMCI SDIO/SD/MMC with up to 2 slots

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9-channel 32-bit Timer/counter TC, quadrature decoder logic and 2-bit gray up/down counter

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32-bit Low-power RTT and low-power RTC with calendar and alarm features

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256-bit General purpose backup registers GPBR

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Ethernet MAC 10/100 EMAC with dedicated DMA

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2 CAN controllers with 8 mailboxes

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True random number generator TRNG