Based on ARM® Cortex®-M0+ processor, SAM DA1 Series features integrated peripheral touch controller for capacitive touch button, slider, wheel, or proximity sensing applications. Atmel |SMART MCU products operate at max frequency of 48 MHz and reach 2.14 Coremark/MHz. Housed in 5 x 5 mm QFN package with wettable flanks for automated optical inspection, AEC Q100 Grade 2-qualified devices come with 32–64 pins, up to 64 KB Flash, 8 KB SRAM, and 2 KB read-while-write Flash.