Atmel AT91SAM3S2B

The Atmel AT91SAM3S2B is a Core: ARM 32-bit Cortex-M3 Microcontroller with MPU, CPU clock up to 64MHz . Memories: 128KB Embedded Flash with Memory Accelerator (128 bit wide access), 32KB Embedded SRAM, 16KB Boot ROM with Embedded Bootloader Routines (via UART and USB) and IAP Routines. System Features: - Power-on-Reset (POR), Brown-out Detector (BOD), Watchdog (WTD). - 2 PLLs up to 130MHz and on chip temperature sensor. - DMA with 21 channels (Peripheral Device Controll PDC). - Internal slow clock oscillator. - High precision 8/12MHz internal RC oscillator. - Embedded voltage regulator for single supply operation. - Nested Interrupt Vector Controller (NVIC) with 30 maskable interrupts and 16 priority levels. Low Power Modes - Sleep and backup modes - Ultra low power RTC (Real Time Clock) Peripherals - USB 2.0 Device, 2668 bytes FIFO, up to 7 bidirectional endpoints and On-Chip transceiver. - Up tp 2 USARTs with ISO7816, IrDA®, RS-485, SPI, Manchester and Modem Mode. - Up to 2 Two Wire Interface (I2C compatible), 1 SPI, and 1 Serial Synchronous Controller (I2S). - 1 High Speed Multimedia Card Interface (HSMCI) compatible with SDIO/SD/SDHC/MMC/CE-ATA specifications. - Up to 3 Three-Channel 16-bit Timer/Counter with capture, waveform, compare and PWM mode. - 4-channel 16-bit PWM with Complementary Output, Fault Input, 12-bit Dead Time Generator Counter for Motor Control. - 32-bit Real-time Timer and RTC with calendar and alarm features. - 12Bit-ADC with 10 Channels and 1Msps. - 12Bit-DAC with 2 Channels and 1Msps. - One analog comparator with flexible input selection, window mode, selectable input hysteresis. - 32-Bit Cyclic Redundancy Check Calculation Unit (CRCCU). I/O - Up to 47 GPIO pins. - Three 32-Bit Parallel Input/Output Controller.