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Board2019Raspberry Pi Ltd

Raspberry Pi 4 Model B

Popular single-board computer featuring a 1.5 GHz 64-bit quad-core ARM Cortex-A72 processor (Broadcom BCM2711), dual 4K micro-HDMI, Gigabit Ethernet, USB 3.0, and 40-pin GPIO header.

Aliase:RPi 4B, Pi 4, Raspberry Pi 4, BCM2711
Raspberry Pi 4B Datasheet (PDF)BCM2711 ARM Peripherals Documentation (PDF)Official Raspberry Pi Documentation

Board Layout (Top & Bottom View)

Board Layout
J2 DSI CSI J8 J0 USB-C Micro HDMI USB 2.0 USB 3.0 Audio Gigabit Ethernet

40-Pin GPIO Header (J8)

40 Pins
2×20 Male Header (2.54mm)13V33GPIO25GPIO37GPIO49GND11GPIO1713GPIO2715GPIO22173V319GPIO1021GPIO923GPIO1125GND27ID_SD29GPIO531GPIO633GPIO1335GPIO1937GPIO2639GND25V45V6GND8GPIO1410GPIO1512GPIO1814GND16GPIO2318GPIO2420GND22GPIO2524GPIO826GPIO728ID_SC30GND32GPIO1234GND36GPIO1638GPIO2040GPIO21pinoutdb.org
Pinout Table40
PinSignal / NameTypeAlternative Functions
13V3Power
+3.3V DC Power
25VPower
+5V DC Power
3GPIO2Digital
SDA1 (I2C1)SPI3_MOSICTS2SDA3
45VPower
+5V DC Power
5GPIO3Digital
SCL1 (I2C1)SPI3_SCLKRTS2SCL3
6GNDGround
Ground (0V)
7GPIO4Digital
GPCLK01-Wire DefaultSPI4_CE0_NTXD3
8GPIO14Digital
TXD0 (UART0)SPI5_MOSITXD1
9GNDGround
Ground (0V)
10GPIO15Digital
RXD0 (UART0)SPI5_SCLKRXD1
11GPIO17Digital
SPI1_CE1_NRTS0RTS1
12GPIO18Digital
PCM_CLKPWM0SPI6_CE0_NSPI1_CE0_N
13GPIO27Digital
SD0_DAT3SPI6_CE1_NARM_TMS
14GNDGround
Ground (0V)
15GPIO22Digital
SD0_CLKSD1_CLKARM_TRSTSDA6
16GPIO23Digital
SD0_CMDSD1_CMDARM_RTCKSCL6
173V3Power
+3.3V DC Power
18GPIO24Digital
SD0_DAT0SPI3_CE1_NARM_TDO
19GPIO10Digital
SPI0_MOSISD2SDA5
20GNDGround
Ground (0V)
21GPIO9Digital
SPI0_MISOSD1SCL4
22GPIO25Digital
SD0_DAT1SPI4_CE1_NARM_TCK
23GPIO11Digital
SPI0_SCLKSD3SCL5
24GPIO8Digital
SPI0_CE0_NSD0SDA4
25GNDGround
Ground (0V)
26GPIO7Digital
SPI0_CE1_NSPI4_SCLKSCL4
27ID_SDDigital
HAT ID EEPROM SDA
28ID_SCDigital
HAT ID EEPROM SCL
29GPIO5Digital
GPCLK1SPI4_MISORXD3SCL3
30GNDGround
Ground (0V)
31GPIO6Digital
GPCLK2SPI4_MOSICTS3SDA4
32GPIO12Digital
PWM0SPI5_CE0_NTXD5SDA5
33GPIO13Digital
PWM1SPI5_MISORXD5SCL5
34GNDGround
Ground (0V)
35GPIO19Digital
PCM_FSPWM1SPI6_MISOSPI1_MISO
36GPIO16Digital
CTS0SPI1_CE2_NCTS1
37GPIO26Digital
SD0_DAT2SPI5_CE1_NARM_TDI
38GPIO20Digital
PCM_DINSPI6_MOSISPI1_MOSIGPCLK0
39GNDGround
Ground (0V)
40GPIO21Digital
PCM_DOUTSPI6_SCLKSPI1_SCLKGPCLK1

4-Pin PoE Header (J0)

4 Pins
2×2 Male Header (2.54mm)1TR01_TAP3TR45_TAP2TR23_TAP4TR67_TAPpinoutdb.org
Pinout Table4
PinSignal / NameTypeAlternative Functions
1TR01_TAPPower
Ethernet Tap Pair 0/1
2TR23_TAPPower
Ethernet Tap Pair 2/3
3TR45_TAPPower
Ethernet Tap Pair 4/5
4TR67_TAPPower
Ethernet Tap Pair 6/7

Global En / Run Header (J2 / RUN)

3 Pins
1×3 Male Header (2.54mm)1GLOBAL_EN2GND3RUNpinoutdb.org
Pinout Table3
PinSignal / NameTypeAlternative Functions
1GLOBAL_ENDigital
PMIC Power Control (Pull LOW to power down)
2GNDGround
Ground (0V)
3RUNDigital
BCM2711 Reset (Pull LOW to reset)

15-Pin MIPI CSI Camera Connector

15 Pins
1GND2CAM_D0_N3CAM_D0_P4GND5CAM_D1_N6CAM_D1_P7GND8CAM_CK_N9CAM_CK_P10GND11CAM_GPIO12CAM_IO113SCL014SDA0153V315-Pin FPC Connector (1.0mm)PINOUTDB.ORG
Pinout Table15
PinSignal / NameTypeAlternative Functions
1GNDGround
Ground (0V)
2CAM_D0_NDigital
MIPI CSI Data Lane 0 Negative
3CAM_D0_PDigital
MIPI CSI Data Lane 0 Positive
4GNDGround
Ground (0V)
5CAM_D1_NDigital
MIPI CSI Data Lane 1 Negative
6CAM_D1_PDigital
MIPI CSI Data Lane 1 Positive
7GNDGround
Ground (0V)
8CAM_CK_NDigital
MIPI CSI Clock Lane Negative
9CAM_CK_PDigital
MIPI CSI Clock Lane Positive
10GNDGround
Ground (0V)
11CAM_GPIODigital
Camera EnableLED Control
12CAM_IO1NC
ReservedUnused
13SCL0Digital
I2C0 Clock (Camera Control)
14SDA0Digital
I2C0 Data (Camera Control)
153V3Power
+3.3V Power Supply

15-Pin MIPI DSI Display Connector

15 Pins
1GND2DSI_D1_N3DSI_D1_P4GND5DSI_CK_N6DSI_CK_P7GND8DSI_D0_N9DSI_D0_P10GND11SCL012SDA013GND143V3153V315-Pin FPC Connector (1.0mm)PINOUTDB.ORG
Pinout Table15
PinSignal / NameTypeAlternative Functions
1GNDGround
Ground (0V)
2DSI_D1_NDigital
MIPI DSI Data Lane 1 Negative
3DSI_D1_PDigital
MIPI DSI Data Lane 1 Positive
4GNDGround
Ground (0V)
5DSI_CK_NDigital
MIPI DSI Clock Lane Negative
6DSI_CK_PDigital
MIPI DSI Clock Lane Positive
7GNDGround
Ground (0V)
8DSI_D0_NDigital
MIPI DSI Data Lane 0 Negative
9DSI_D0_PDigital
MIPI DSI Data Lane 0 Positive
10GNDGround
Ground (0V)
11SCL0Digital
I2C0 Clock (Display Touch/Config)
12SDA0Digital
I2C0 Data (Display Touch/Config)
13GNDGround
Ground (0V)
143V3Power
+3.3V Power Supply
153V3Power
+3.3V Power Supply

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