7.3 CAN D-type, 9-pin male connector CN3
Figure 7. CAN D-type, 9-pin connector CN3 (front view)
Table 20. CAN D-type 9-pin male connector CN3
Pin number Description Pin number Description
1,4,8,9 NC 7 CANH
2 CANL 3,5,6 GND
7.4
External I
2
C connector CN4
Figure 8. I
2
C EXT connector CN4 (front view)
1 7
2 8
Table 21. I
2
C EXT connector CN4
Pin number Description Pin number Description
1 I2C1_SDA (PB7) 5 +3.3 V
2 NC 6 NC
3 I2C1_SCL (PB6) 7 GND
4 RESET (PA4) 8 NC
UM2525
CAN D-type, 9-pin male connector CN3
UM2525 - Rev 3
page 23/69