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Hi!
I'm currently designing a product that should work with a set of daughter boards, which are not designed by me, some of them have IOs working at 3.3V, some working at 1.8V.
In order to manage this, I place a TXB0108DQSR in my board, which translates from 3.3V (in my board) to 1.8V or 3.3V, depending on the daughter board I plugged.
I have a problem with one daughter board, which has inside a TXB0108RGYR in the same lines I have my TXB0108DQSR.
In this case, my board sets the digital line to 0V, but I have 1.05V at the output of my TXB0108DQSR, which is the input of the TXB0108RGYR in the daughter board.
I suspect this is because of some collateral effect due to having both bidirectional level translators in cascade.
To make things more difficult, I can't use a unidirectional translators, because these signals are input or output depending on the daughter board plugged.
Do you think I can do something to make this working?
