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3.5"-eIO-GPA - User Guide, Rev. 1.0
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7.2.
I
2
C Wafer (CN3)
The 1x4-pin 1.25 mm pitch I
2
C wafer (CN3) is used for sensor or other control function.
Figure 14: SMBus Wafer CN3
Table 12: Pin Assignment CN3
Pin
Signal
Description
Note
1
I2C_CLK
I
2
C clock
2
I2C_DATA
I
2
C data
3
GND
Power supply ground signal
4
+3.3V
+ 3.3 V power supply
Connector Type
B2W, 1x4-pin, 1.25 mm pitch