Raspberry Pi A/B P1 header (GPIO)


Raspberry Pi A+/B+ and Raspberry Pi0/Pi2/Pi3/Pi4 header (GPIO)

Row1 SignalPinPinRow2 Signal
Pi Rev1Pi Rev2
Pi+, Pi0, Pi2, Pi3, Pi4
Pi4 extraPi Rev1Pi Rev2
Pi+, Pi0, Pi2, Pi3, Pi4
Pi4 extra
3.3 V125 V
GPIO 0GPIO 2SPI3 MOSI345 V
I2C0 SDAI2C1 SDAI2C3 SDA
GPIO 1GPIO 3SPI3 SCLK56Ground
I2C0 SCLI2C1 SCLI2C3 SCL
GPIO 4SPI4 CE078GPIO 14SPI5 MOSI
UART3 TX
I2C3 SDAUART0 TXUART1 TX
Ground910GPIO 15SPI5 SCLK
UART0 RXUART1 RX
GPIO 171112GPIO 18
SPI1 CE1SPI1 CE0SPI6 CE0
GPIO 21GPIO 27SPI6 CE11314Ground
GPIO 22I2C6 SDA1516GPIO 23I2C6 SCL
3.3 V1718GPIO 24SPI3 CE1
GPIO 101920Ground
SPI0 MOSII2C5 SDA
GPIO 9UART4 RX2122GPIO 25SPI4 CE1
SPI0 MISOI2C4 SCL
GPIO 112324GPIO 8UART4 TX
SPI0 SCLKI2C5 SCLSPI0 CE0I2C4 SDA
Ground2526GPIO 7I2C4 SCL
SPI0 CE1SPI4 SCLK
IS_SDSPI3 CE02728IS_SCSPI3 MISO
GPIO 0UART2 TXGPIO 1UART2 RX
I2C0 SDAI2C6 SDAI2C0 SCLI2C6 SCL
GPIO 5SPI4 MISO2930Ground
UART3 RX
I2C3 SCL
GPIO 6SPI4 MOSI3132GPIO 12SPI5 CE0
I2C4 SDAI2C5 SDA
UART5 TX
GPIO 13SPI5 MISO3334Ground
I2C5 SCL
UART5 RX
GPIO 193536GPIO 16SPI1 CE2
SPI1 MISOSPI6 MISO
GPIO 26SPI5 CE13738GPIO 20SPI6 MOSI
SPI1 MOSI
Ground3940GPIO 21SPI6 SCLK
SPI1 SCLK

Notes:
Voltage levels are 3.3V (NOT 5V tolerant). There is no over-voltage protection on the board.
The maximum permitted current draw from the 3.3 V pin is 50 mA.
The GPIO pins are unbuffered and unprotected.
Pin 3-5 (SDA/SCL) have 1.8 kΩ pulls up resistors on the board.
Pin 27-40 are only available on Raspberry Pi A+/B+, Raspberry Pi0, Pi2, Pi3 and Pi4.
Pin IS_SD-IS_SC are reserved for ID EEPROM.




Raspberry Pi Technical Specifications

Pi APi A+Pi BPi B+Pi2 BPi3 BPi3 B+Pi4 BPi 0Pi 0 W
SoCBroadcom BCM2835Broadcom BCM2836Broadcom BCM2837Broadcom BCM2837B0Broadcom BCM2711Broadcom BCM2835
CPU700MHz ARM1176JZF-S900MHz 4x ARM Cortex-A71.2GHz 4x ARM Cortex-A531.4GHz 4x ARM Cortex-A531.5GHz 4x ARM Cortex-A721GHz ARM1176JZF-S
GPUBroadcom VideoCore IV @ 250 MHz, OpenGL ES 2.0, 1080p30 H.264 high-profile decoder and encoder (BCM2837: 1080p60)Broadcom VideoCore VI @ 500 MHz, OpenGL ES 3.x, HEVC 4K 60 fpsBroadcom VideoCore IV @ 250 MHz, OpenGL ES 2.0, 1080p30 H.264 high-profile decoder and encoder
RAM256 MB256/512 MB1 GB1/2/4 GB512 MB
USB212421 (micro)
USB3020
Video outputHDMI (rev 1.3)2x micro-HDMI (rev 2.0)Mini-HDMI
composite (RCA jack)composite (3.5mm jack)composite (RCA jack)composite (3.5mm jack)composite via GPIO
Audio outputHDMI, 3.5mm jackMini-HDMI, PWM on GPIO
StorageSD/MMC/SDIOmicroSDSD/MMC/SDIOmicroSD
Network-10/100 Ethernet10/100 Ethernet,
802.11n WiFi,
Bluetooth 4.1
10/100/1000 Ethernet,
802.11ac WiFi,
Bluetooth 4.2
10/100/1000 Ethernet,
802.11ac WiFi,
Bluetooth 5.0
-802.11n WiFi,
Bluetooth 4.1
Peripherals26 pin GPIO header40 pin GPIO header26 pin GPIO header40 pin GPIO header
Power ratings300mA (1.5W)200mA (1W)700mA (3.5W)200mA (1W) idle
350mA (1.75W) max
220mA (1.1W) idle
820mA (4.1 W) max
300mA (1.5W) idle
1.3A (6.5 W) max
450mA (2.25W) idle
1.1A (5.5 W) max
3 A (15W)100mA (0.5W) idle
350mA (1.75W) max
Size (mm)85.6 x 56.565 x 56.585.60 x 56.565 x 30