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SN74LVC2G66 power off state

Shu-Cheng LIN
Guru 11785 points
Other Parts Discussed in Thread: SN74LVC2G66, SN74CB3Q3305

Hi Sir,

Sorry to bother you.

We used SN74LVC2G66, have some question need to check.
Because we use SN74LVC2G66 to switching I2C at power S5 state, We have pull high 3.3v at I/O. But if SN74LVC2G66 no VCC, the I/O will be pull low to 0.7-0.9v.
It's will make the I2C send wrong signal.

So we would like check what is I/O state of SN74LVC2G66 at power off? Hi-z or???
If possible, could you provide suitable solution for us( Dual SPST and Hi-z at power off)

Thanks for your reply.