Atmel SAM D11 (ATSAMD11D14A) — ARM Cortex-M0+ MCU

Low-power 32-bit ARM Cortex-M0+ microcontroller at up to 48 MHz with 16 KB Flash, 4 KB SRAM and full-speed crystal-less USB 2.0. ATSAMD11D14A in a 24-pin QFN.