PCA9614 (Voltage from SDA - GND)

[spanikakamuni]

Hello,

I am trying to implement I2c buffer (PCA9614) in one of my applications. I am supplying the buffer from 3V3 source. 

When I measure the voltage between SCL and ground, it measures 3V3. all fine.

but when I measure voltage between SDA and ground, I measure only 0V5. May I know the reason for this behaviour of IC.

[darioarias]

Hello Spanika,

This is not the normal behavior of the device, the default value for the communication lines (SDA and SCL) is Vdd. Do you have the schematic or a picture of your configuration? This will be helpful  to find a possible issue with the connection

Regards,

Darío