The SAM D51 high performance micro-controller series is targeted for general purpose applications using the 32-bit ARM® Cortex®-M4 processor with Floating Point Unit (FPU), running up to 120 MHz ,up to 1 MB Dual Panel Flash with ECC, and up to 256 KB of SRAM with ECC. Series offers excellent features with class leading power performance ideal for multiple market segments.

Quad Serial Peripheral Interface(QSPI) with Execute in Place (XIP) Support.
Up to 2 Secure Digital Host Controller (SDHC)
Inter-IC Sound(I2S)Controller for Audio
Peripheral Touch Controller (PTC) supporting up to 256 channels of capacitive touch .
Full speed USB with embedded Host/device.
Supports 5 Low power modes with class leading 65μA/MHz Active Power Performance.
Integrated security including Asymmetric and Symmetric Crypto hardware acceleration
Serial communication (SERCOM) ports configurable as UART/USART, ISO 7816, SPI or I2C