UM1932 Rev 3 23/30
UM1932 Hardware layout and configuration
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4.16 I
2
C extension connector CN11
Figure 8. I
2
C extension connector (front view)
4.17 USB OTG FS Micro-AB connector CN13
Figure 9. USB OTG FS Micro-AB connector CN13 (front view)
Table 9. I
2
C extension connector pinout
Pin number Description Pin number Description
1 I2C1_SDA (PB9) 5 +3V3
2NC6NC
3 I2C1_SCL (PB8) 7 GND
4 EXT_RESET(PB0) 8 NC
Table 10. USB OTG FS Micro-AB connector CN13
Pin number Description Pin number Description
1 VBUS (PA9) 4 ID (PA10)
2 DM (PA11) 5 GND
3 DP (PA12) - -