Atmel AT91SAM3U4C

The Atmel AT91SAM3U4C is a Core: ARM 32-bit Cortex-M3 Microcontroller with MPU, CPU clock up to 84MHz Memories: 256kB Embedded Flash with Memory Accelerator 52kB Embedded SRAM 16kB ROM with Embedded Bootloader Routines and IAP Routines Specific Features: - High Speed USB 2.0 Device - External Bus Interface (EBI), 8 bits, 2 chip selects, 8-bit address - 4-channel 12-bit 1 MSPS ADC - 4-channel 10-bit ADC - 3 * USART - 1 * TWI - 57 GPIO pins Common Features: High precision 12 MHz factory trimmed internal RC and low power internal RC, 19 peripheral DMA and 4-channel central DMA, Low Power Modes, SPI, SSC (I2S), MCI (SDIO/SD/MMC), 3-channel 16-bit Timer/Counter (capture, compare, PWM), 4-channel 16-bit PWM (PWMC), 32-bit Real Time Timer and RTC.