Tool/software:
Dear Technical Support Team,
I have some questions about TMUX121 when it is following condisions.
See attached file.
・The S-side circuit is de-energized, including TMUX121.
・The D-side circuit is energized and may communicate between Devices A and B.
Is it acceptable to use it this way?
Some devices occasionally have built-in protection circuits that may affect signal levels, so I want to confirm the following as a precaution.
Specifically, I'd like to confirm the following to clarify.
・Even when VDD, SEL, ENn, D1, and D2 are de-energized, are S1x and S2x in a high-impedance state?
・When VDD, SEL, ENn, S1x, and S2x are de-energized, are D1 and D2 in a high-impedance state?
→I think that TMUX121 has Power-Off Isolation feature, so when VDD = 0V, SEL, ENn, D1, D2, S1x, and S2x all become high-impedance.
Is it correct?
Best Regards,
ttd
