Atmel SAMG51N18

The Atmel SAMG51N18 is a Core - ARM Cortex-M4 up to 48 MHz - Memory Protection Unit (MPU) - DSP Instruction - Floating Point Unit (FPU) Memories - 256 Kbytes embedded Flash - 64 Kbytes embedded SRAM System - Embedded voltage regulator for single supply operation - Power-on reset (POR) and Watchdog for safe operation - Quartz or ceramic resonator oscillators: 3 to 20MHz power with failure detection and 32.768kHz for RTT or device clock - High precision 8/16/24 MHz factory trimmed internal RC oscillator - Slow Clock Internal RC oscillator as permanent low-power mode device clock - PLL range from 24 MHz to 48 MHz for device clock - Up to 18 peripheral DMA (PDC) channels - 8 x 32-bit General-Purpose Backup Registers (GPBR) - 16 External Interrupt lines Low-power modes (typical value) - Wait mode 6.8 uA - Wake-up time 3.2 us Peripherals - 1 USART with SPI Mode - 2 2-wire UARTs - 3 Two Wire Interface (TWI), 2x Fast Mode TWI Master and one High Speed TWI Slave - 1 fast SPI at up to 24Mbit/s - 1 three-channel 16-bit Timer/Counter (TC) with capture, waveform, compare and PWM modes - 1 32-bit Real-Time Timer and Real-Time Clock (RTC) I/Os - Up to 38 I/O lines with external interrupt capability - Two up to 25-bit PIO Controllers Analog - 1 8-channel 12-bit ADC, up to 800 KSps.