Atmel AT91SAM3S4C

The Atmel AT91SAM3S4C is a Core: ARM 32-bit Cortex-M3 Microcontroller with MPU, CPU clock up to 64MHz . Memories: 256KB Embedded Flash with Memory Accelerator (128 bit wide access), 48KB Embedded SRAM, 16KB Boot ROM with Embedded Bootloader Routines (via UART and USB) and IAP Routines, External Bus Interface with 8 Bit Static Memory Controller (SMC) for SRAM, PSRAM, NOR and NAND flash devices. 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 6 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 16 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 79 GPIO pins. - Three 32-Bit Parallel Input/Output Controller.