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TMUX1574: May both SPI interfaces are running @ 1.8V level but the VDD of TMUX1574 connect to 3.3V ; is there any risk on this circuit?

Chen Bogey8
Mastermind 9990 points
Part Number: TMUX1574

Hi Sir

Both SPI interfaces are running @ 1.8V level but the VDD of TMUX1574 connect to 3.3V ; is there any risk on this circuit? 

                                                      Bogey

  • 0
    TI__Expert 3900 points

    Hi Chen,

    This application is within the recommended operating range of the TMUX1574. Your input signals can range from 0V to VDD an expect the performance highlighted in the spec tables.

    Here is a snippet from the Typical Application section of the datasheet that shows your above use case: