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TS5A23159: What is the connection of I / O Path when Vcc = 0V?

Part Number: TS5A23159
Other Parts Discussed in Thread: TMUX1574

Hello,

My customer have a question about TS5A32159.

[Q]

What is the connection of I / O Path when Vcc = 0V?
1. COM-NC
2. COM-NO
3. COM, NC and NO are Hi-Z

I think it's 3 because of Isolation in Power-Down Mode, VCC = 0.
Do you recognize me?

If there is Power-Down Mode, it seems that there is no problem if there is an input higher than the power supply voltage.
Why does the input voltage range depend on Vcc at the absolute maximum rating?

Best Regards,

Kaede Kudo