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Raspberry Pi 4 GPIO Header
Raspberry PiBCM2711
The Raspberry Pi 4's 40-pin GPIO header (identical layout to the Pi 2/3/5 and Zero). 3.3V logic — NOT 5V tolerant. Carries I2C, SPI, UART, PWM, and the ID EEPROM pins.
In stock
Specifications
0No specs listed.
Pinout
40| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | 3V3 | POWER | 3.3V |
| 2 | 5V | POWER | 5V |
| 3 | GPIO2 | I2C | SDA1 |
| 4 | 5V | POWER | 5V |
| 5 | GPIO3 | I2C | SCL1 |
| 6 | GND | GND | Ground |
| 7 | GPIO4 | GPIO | GPCLK0 |
| 8 | GPIO14 | UART | TXD0 |
| 9 | GND | GND | Ground |
| 10 | GPIO15 | UART | RXD0 |
| 11 | GPIO17 | GPIO | |
| 12 | GPIO18 | GPIO | PCM/PWM |
| 13 | GPIO27 | GPIO | |
| 14 | GND | GND | Ground |
| 15 | GPIO22 | GPIO | |
| 16 | GPIO23 | GPIO | |
| 17 | 3V3 | POWER | 3.3V |
| 18 | GPIO24 | GPIO | |
| 19 | GPIO10 | SPI | MOSI |
| 20 | GND | GND | Ground |
| 21 | GPIO9 | SPI | MISO |
| 22 | GPIO25 | GPIO | |
| 23 | GPIO11 | SPI | SCLK |
| 24 | GPIO8 | SPI | CE0 |
| 25 | GND | GND | Ground |
| 26 | GPIO7 | SPI | CE1 |
| 27 | GPIO0 | I2C | ID_SD |
| 28 | GPIO1 | I2C | ID_SC |
| 29 | GPIO5 | GPIO | |
| 30 | GND | GND | Ground |
| 31 | GPIO6 | GPIO | |
| 32 | GPIO12 | GPIO | PWM0 |
| 33 | GPIO13 | GPIO | PWM1 |
| 34 | GND | GND | Ground |
| 35 | GPIO19 | GPIO | PCM FS |
| 36 | GPIO16 | GPIO | |
| 37 | GPIO26 | GPIO | |
| 38 | GPIO20 | GPIO | PCM DIN |
| 39 | GND | GND | Ground |
| 40 | GPIO21 | GPIO | PCM DOUT |
Interactive pinout
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BCM2711
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