I/O when the switch is off.
The off Isiloation is -69db.
This means if you have a 1V Signal at the Input you will see 385uV Signal at
I assume your question is about the switch pins X0-X11/Y0-Y7. If that’s the
case, then these pins can be considered Hi Z in the off condition.
The only conduction path that actually exists to GND, VDD or VSS from each pin
is the leakage current which is small enough to ensure a Hi Z state.
Also the impedance between any X and Y pins in the off state is in order of
Giga Ohms in
parallel with a capacitor that sets the off isolation.
These being said, I think we can confidently say that the X/Y
pins are in the Hi Z state when the switches are off.