Arduino Nano 33 IoT

Tech specs

The Arduino Nano 33 IoT is based on the SAMD21 micro-controller.
Micro-controller SAMD21 Cortex®-M0+ 32bit low power ARM MCU (datasheet)
Radio module u-blox NINA-W102 (datasheet)
Secure Element ATECC608A (datasheet)
Operating Voltage 3.3V
Input Voltage (limit) 21V
DC Current per I/O Pin 7 mA
Clock Speed 48MHz
CPU Flash Memory 256KB
SRAM 32KB
EEPROM none
Digital Input / Output Pins 14
PWM Pins 11 (2, 3, 5, 6, 9, 10, 11, 12, 16 / A2, 17 / A3, 19 / A5)
UART 1
SPI 1
I2C 1
Analog Input Pins 8 (ADC 8/10/12 bit)
Analog Output Pins 1 (DAC 10 bit)
External Interrupts All digital pins (all analog pins can also be used as interrupt pins, but will have duplicated interrupt numbers)
LED_BUILTIN 13
USB Native in the SAMD21 Processor
IMU LSM6DS3 (datasheet)
Length 45 mm
Width 18 mm
Weight 5 gr (with headers)