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Raspberry Pi Pico 2

Raspberry Pi Pico 2 pinout table

2 × Cortex-M33 / Hazard3 RISC-V 150 MHz, 520 KB SRAM, 4 MB flash. Same pinout as the Pico 2 W but without Wi-Fi.

Logic
3.3 V (normal GPIO 5 V tolerant when IOVDD is powered)
Size
51 × 21 mm, 40 pins at 2.54 mm pitch
ADC
12-bit, 3 external channels (GP26–28)
Internal
GP23 SMPS power mode, GP24 VBUS sense, GP25 LED, GP29 VSYS/3 sense
PIO
3 PIO blocks × 4 state machines
PinHeaderGPIOTypeFunctionsNotes
GP0J1-10UART/I2CUART0 TX, I2C0 SDA, SPI0 RX, PWM0 A, PIO0/1/2
GP1J1-21UART/I2CUART0 RX, I2C0 SCL, SPI0 CSn, PWM0 B, PIO0/1/2
GNDJ1-3–GNDGround
GP2J1-42GPIOUART0 CTS, I2C1 SDA, SPI0 SCK, PWM1 A, PIO0/1/2
GP3J1-53GPIOUART0 RTS, I2C1 SCL, SPI0 TX, PWM1 B, PIO0/1/2
GP4J1-64GPIOUART1 TX, I2C0 SDA, SPI0 RX, PWM2 A, PIO0/1/2
GP5J1-75GPIOUART1 RX, I2C0 SCL, SPI0 CSn, PWM2 B, PIO0/1/2
GNDJ1-8–GNDGround
GP6J1-96GPIOUART1 CTS, I2C1 SDA, SPI0 SCK, PWM3 A, PIO0/1/2
GP7J1-107GPIOUART1 RTS, I2C1 SCL, SPI0 TX, PWM3 B, PIO0/1/2
GP8J1-118GPIOUART1 TX, I2C0 SDA, SPI1 RX, PWM4 A, PIO0/1/2
GP9J1-129GPIOUART1 RX, I2C0 SCL, SPI1 CSn, PWM4 B, PIO0/1/2
GNDJ1-13–GNDGround
GP10J1-1410GPIOUART1 CTS, I2C1 SDA, SPI1 SCK, PWM5 A, PIO0/1/2
GP11J1-1511GPIOUART1 RTS, I2C1 SCL, SPI1 TX, PWM5 B, PIO0/1/2
GP12J1-1612GPIOUART0 TX, I2C0 SDA, SPI1 RX, PWM6 A, PIO0/1/2
GP13J1-1713GPIOUART0 RX, I2C0 SCL, SPI1 CSn, PWM6 B, PIO0/1/2
GNDJ1-18–GNDGround
GP14J1-1914GPIOUART0 CTS, I2C1 SDA, SPI1 SCK, PWM7 A, PIO0/1/2
GP15J1-2015GPIOUART0 RTS, I2C1 SCL, SPI1 TX, PWM7 B, PIO0/1/2
VBUSJ2-40–Power5V from micro-USBUSB voltage (≈5 V) while a cable is plugged in. No cable, no voltage on this pin.
VSYSJ2-39–PowerSystem supply 1.8–5.5 VMain power input to the buck-boost. Feed a battery/external supply here through a Schottky diode if USB stays connected.
GNDJ2-38–GNDGround
3V3_ENJ2-37–ControlEnable/disable the 3.3 V buckPulled up onboard. Pull to GND to turn off 3.3 V (and the RP2350).
3V3J2-36–Power3.3 V output (OUT)Buck-boost output. The datasheet recommends keeping external load under 300 mA.
ADC_VREFJ2-35–AnalogADC reference voltageTied to 3.3 V through a filter by default. You can supply a more accurate external reference.
GP28J2-3428AnalogADC2, UART0 TX, I2C0 SDA, SPI1 RX, PWM6 A, PIO0/1/2
AGNDJ2-33–GNDMass analog
GP27J2-3227AnalogADC1, UART1 RTS, I2C1 SCL, SPI1 TX, PWM5 B, PIO0/1/2
GP26J2-3126AnalogADC0, UART1 CTS, I2C1 SDA, SPI1 SCK, PWM5 A, PIO0/1/2
RUNJ2-30–ControlReset RP2350Pull LOW to reset. Pulled up onboard; add a button to GND as a reset button.
GP22J2-2922GPIOUART1 CTS, I2C1 SDA, SPI0 SCK, PWM3 A, PIO0/1/2
GNDJ2-28–GNDGround
GP21J2-2721GPIOUART1 RX, I2C0 SCL, SPI0 CSn, PWM2 B, PIO0/1/2
GP20J2-2620GPIOUART1 TX, I2C0 SDA, SPI0 RX, PWM2 A, PIO0/1/2
GP19J2-2519GPIOUART0 RTS, I2C1 SCL, SPI0 TX, PWM1 B, PIO0/1/2
GP18J2-2418GPIOUART0 CTS, I2C1 SDA, SPI0 SCK, PWM1 A, PIO0/1/2
GNDJ2-23–GNDGround
GP17J2-2217GPIOUART0 RX, I2C0 SCL, SPI0 CSn, PWM0 B, PIO0/1/2
GP16J2-2116GPIOUART0 TX, I2C0 SDA, SPI0 RX, PWM0 A, PIO0/1/2
SWCLKSWD-1–ControlDebug SWD clockSWD debug port.
GNDSWD-2–GNDGround
SWDIOSWD-3–ControlDebug SWD dataSWD debug port.

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