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Original question:

SN74LVC1T45-EP: leakage in power domains

SN74LVC1T45-EP: Input Impedance

Michael T Schneider
Expert 3780 points
Part Number: SN74LVC1T45-EP

Team, can we confirm the below?

I am trying to verify that the normal operating input impedance for the ‘A’ input on the SN74LVC1T45-EP IC is above 100k ohm.  Any help with resolving this would be much appreciated.  

  • 0
    TI__Guru 62930 points
    Michael,
    The input impedance can be estimated from the leakage parameters in the DS.
    For worst case, A port has +/-6uA of leakage with 5.5V to GND. This results in a min impedance of 916.6Kohm.

    If this answers your question, please click "Verify it as the answer"
    Regards,
    Wade