Board connectors UM2407
34/49 UM2407 Rev 3
7 Board connectors
Several connectors are implemented on the STM32H7 Nucleo-144 board.
7.1 STLINK-V3E USB Micro-B connector (CN1)
The USB Micro-B connector (CN1) is used to connect embedded STLINK-V3E to the PC for
programming and debugging purposes.
The related pinout for the USB STLINK-V3E connector is listed in Table 15.
7.2 USB OTG_FS connector (CN13)
A USB OTG full-speed communication link is available at the USB Micro-AB receptacle
connector (CN13). Micro-AB receptacle enables USB Host and USB Device features.
The related pinout for the USB OTG_FS connector is listed in Table 16.
Table 15. USB Micro-B connector (CN1) pinout
Connector
Pin
number
Pin name Signal name
ST-LINK
MCU pin
Function
CN1
1 VBUS 5V_USB_CHGR - 5 V power
2 DM USB_DEV_HS_CN_N PB14 USB differential pair N
3 DP USB_DEV_HS_CN_P PB15 USB differential pair P
4 ID - - -
5 GND - - GND
Table 16. USB OTG_FS Micro-AB connector (CN13) pinout
Connector
Pin
number
Pin name Signal name MCU pin Function
CN13
1 VBUS USB_FS_VBUS PA9 5 V power
2 DM USB_FS_N PA11 USB differential pair M
3 DP USB_FS_P PA12 USB differential pair P
4 ID USB_FS_ID PA10 -
5 GND - - GND
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