esp-idf/docs/en/api-reference/peripherals/gpio/esp32p4.inc

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.. gpio-summary

The {IDF_TARGET_NAME} chip features 55 physical GPIO pins (GPIO0 ~ GPIO54). Each pin can be used as a general-purpose I/O, or to be connected to an internal peripheral signal. Through GPIO matrix and IO MUX, peripheral input signals can be from any IO pins, and peripheral output signals can be routed to any IO pins. Together these modules provide highly configurable I/O. For more details, see *{IDF_TARGET_NAME} Technical Reference Manual* > *IO MUX and GPIO Matrix (GPIO, IO_MUX)* [`PDF <{IDF_TARGET_TRM_EN_URL}#iomuxgpio>`__].

The table below provides more information on pin usage, and please note the comments in the table for GPIOs with restrictions.

.. list-table::
    :header-rows: 1
    :widths: 8 12 12 20

    * - GPIO
      - Analog Function
      - LP GPIO
      - Comments

    * - GPIO0
      -
      - LP_GPIO0
      -

    * - GPIO1
      -
      - LP_GPIO1
      -

    * - GPIO2
      - TOUCH0
      - LP_GPIO2
      -

    * - GPIO3
      - TOUCH1
      - LP_GPIO3
      -

    * - GPIO4
      - TOUCH2
      - LP_GPIO4
      -

    * - GPIO5
      - TOUCH3
      - LP_GPIO5
      -

    * - GPIO6
      - TOUCH4
      - LP_GPIO6
      -

    * - GPIO7
      - TOUCH5
      - LP_GPIO7
      -

    * - GPIO8
      - TOUCH6
      - LP_GPIO8
      -

    * - GPIO9
      - TOUCH7
      - LP_GPIO9
      -

    * - GPIO10
      - TOUCH8
      - LP_GPIO10
      -

    * - GPIO11
      - TOUCH9
      - LP_GPIO11
      -

    * - GPIO12
      - TOUCH10
      - LP_GPIO12
      -

    * - GPIO13
      - TOUCH11
      - LP_GPIO13
      -

    * - GPIO14
      - TOUCH12
      - LP_GPIO14
      -

    * - GPIO15
      - TOUCH13
      - LP_GPIO15
      -

    * - GPIO16
      - ADC1_CH0
      -
      -

    * - GPIO17
      - ADC1_CH1
      -
      -

    * - GPIO18
      - ADC1_CH2
      -
      -

    * - GPIO19
      - ADC1_CH3
      -
      -

    * - GPIO20
      - ADC1_CH4
      -
      -

    * - GPIO21
      - ADC1_CH5
      -
      -

    * - GPIO22
      - ADC1_CH6
      -
      -

    * - GPIO23
      - ADC1_CH7
      -
      -

    * - GPIO24
      -
      -
      -

    * - GPIO25
      -
      -
      -

    * - GPIO26
      -
      -
      -

    * - GPIO27
      -
      -
      -

    * - GPIO28
      -
      -
      -

    * - GPIO29
      -
      -
      -

    * - GPIO30
      -
      -
      -

    * - GPIO31
      -
      -
      -

    * - GPIO32
      -
      -
      -

    * - GPIO33
      -
      -
      -

    * - GPIO34
      -
      -
      - Strapping pin

    * - GPIO35
      -
      -
      - Strapping pin

    * - GPIO36
      -
      -
      - Strapping pin

    * - GPIO37
      -
      -
      - Strapping pin

    * - GPIO38
      -
      -
      - Strapping pin

    * - GPIO39
      -
      -
      -

    * - GPIO40
      -
      -
      -

    * - GPIO41
      -
      -
      -

    * - GPIO42
      -
      -
      -

    * - GPIO43
      -
      -
      -

    * - GPIO44
      -
      -
      -

    * - GPIO45
      -
      -
      -

    * - GPIO46
      -
      -
      -

    * - GPIO47
      -
      -
      -

    * - GPIO48
      -
      -
      -

    * - GPIO49
      - ADC1_CH8
      -
      -

    * - GPIO50
      - ADC1_CH9
      -
      -

    * - GPIO51
      - ADC1_CH10, ANA_CMPR_CH0 reference voltage
      -
      -

    * - GPIO52
      - ADC1_CH11, ANA_CMPR_CH0 input (non-inverting)
      -
      -

    * - GPIO53
      - ADC1_CH12, ANA_CMPR_CH1 reference voltage
      -
      -

    * - GPIO54
      - ADC1_CH13, ANA_CMPR_CH1 input (non-inverting)
      -
      -

.. note::

    - Strapping pin: GPIO34, GPIO35, GPIO36, GPIO37, and GPIO38 are strapping pins. For more information, please refer to `datasheet <{IDF_TARGET_DATASHEET_EN_URL}>`__.
	  - USB-JTAG: GPIO 24 and 25 are used by USB-JTAG by default. In order to use them as GPIOs, USB-JTAG will be disabled by the drivers.

---