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TXS0104E: TWI Interface Issue

Nachiketh Karanth
Intellectual 550 points
Part Number: TXS0104E
Other Parts Discussed in Thread: TXB0104

Tool/software:

Hi,

I have used TXS0104EPWR IC for voltage translation of TWI SCL and SDA signals from 3.3V to 1.8V.

While trying to detect the TWI slave device, slave is getting detected at 3.3V side, but it is not getting detected at 1.8V side. Pull ups have been provided in 3.3V side and pull ups are not provided at 1.8V side. Are pull ups the issue for slave not getting detected at 1.8V side even though TXS series have internal pull ups?

Thanks