Power-on Reset (POR) and Brown-out Detection (BOD).256 KB in-system self-programmable Flash.ARM ® Cortex®-M0+ single core CPU running at up to 48 MHz.SAMD21 Cortex®-M0+ 32bit low power ARM MCU (Datasheet)ġ1 (2, 3, 5, 6, 9, 10, 11, 12, 16 / A2, 17 / A3, 19 / A5)Īll digital pins (all analog pins can also be used as interrput pins, but will have duplicated interrupt numbers)Īrduino Nano 33 IoT top side Arduino Nano 33 IoT bottom side Atmel ATSAMD21G18
