Specification21 mm × 51 mm form factorRP2040 microcontroller chip designed by Raspberry Pi in the UKDual-core Arm Cortex-M0+ processor, flexible clock running up to 133 MHz264kB on-chip SRAM2MB on-board QSPI flash2.4GHz 802.11n wireless LAN (Raspberry Pi Pico W and WH only)Bluetooth 5.2 (Raspberry Pi Pico W and WH only)26 multifunction GPIO pins, including 3 analogue inputs2 × UART, 2 × SPI controllers, 2 × I2C controllers, 16 × PWM channels1 × USB 1.1 controller and PHY, with host and device support8 × Programmable I/O (PIO) state machines for custom peripheral supportSupported input voltage 1.8–5.5V DCOperating temperature -20°C to +85°C (Raspberry Pi Pico and Pico H); -20°C to +70°C (Raspberry Pi Pico W and Pico WH)Castellated module allows soldering direct to carrier boards (Raspberry Pi Pico and Pico W only)Drag-and-drop programming using mass storage over USBLow-power sleep and dormant modesAccurate on-chip clockTemperature sensorAccelerated integer and floating-point libraries on-chip