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SN74CBTLV3257: VIH and VIL specs consult

Stanley Dai
Expert 5810 points
Part Number: SN74CBTLV3257

Hi Team,

Does the VIH and VIL requirements in below table only refer to the OE and S pins? Or including all input pins (such as A and B pins)? Thanks.

Best,

Stanley.

  • +1
    Guru 244220 points

    The A and B pins are analog I/Os and do not switch, so they do not have switching thresholds.

  • +1
    TI__Mastermind 43536 points

    Hi Stanley,

    Clemens is correct - the A and B pins are analog I/O's and do not have VIL/VIH thresholds. Digital signals can still be passed through analog switches but the analog switch pathway itself is essentially just a small resistor between the two pins that are connected  with some parasitic capacitance to ground. 

    Only the digital pins on our analog switches require you to meet the listed thresholds (OE / S) 

    If you have any other questions please let me know!

    Best

    Parker Dodson