Figure 17.
GPIO connectors
describes the pinout of the GPIO connectors.
Table 25.
GPIO connectors pinout
Function
STM32 pin
Pin
Pin
STM32 pin
Function
3V3
-
1
2
-
5V
GPIO2 / I2C5_SDA
PA12
3
4
-
5V
GPIO3 / I2C5_SCL
PA11
5
6
-
GND
GPIO4 / MCO1
PA8
7
8
PB10
GPIO14 / USART3_TX
GND
-
9
10
PB12
GPIO15 / USART3_RX
GPIO17 / USART3_RTS
PG8
11
12
PI5
GPIO18 / SAI2_SCKA
GPIO27 / SDMMC3_D3
PD7
13
14
-
GND
GPIO22 / SDMMC3_CK
PG15
15
16
PF1
GPIO23 / SDMMC3_CMD
3V3
-
17
18
PF0
GPIO24 / SDMMC3_D0
GPIO10 / SPI5_MOSI
PF9
19
20
-
GND
GPIO9 / SPI5_MISO
PF8
21
22
PF4
GPIO25 / SDMMC3_D1
GPIO11 / SPI5_SCK
PF7
23
24
PF6
GPIO8 / SPI5_NSS
GND
-
25
26
PF3
GPIO7
I2C1_SDA
PF15
27
28
PD12
I2C1_SCL
GPIO5 / MCO2
PG2
29
30
-
GND
UM2534
GPIO expansion connectors
UM2534
-
Rev 1
page 31/47