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SN74CBTLV3861: OE pin leakeage current of SN74CBTLV3861

Part Number: SN74CBTLV3861

Hello Team,

Could you kindly help me check the leakage current of OE pin? we are using 10pcs of  SN74CBTLV3861, and all OE pin tie together and with one 10k pull up to 3.3V power rail,  I am not sure whether it has enough margin here.

Thanks,

Antony

  • Antony,

    If you are pulling up to 3.3V with a 10k ohm resistor you would want to avoid a 1V drop across that pull up resistor to make sure you are above the Vih threshold by some margin. To get a 1V drop across that resistor would mean that each OE pin would have 10uA of leakage. Typically, these digital control pin leakages are around 1uA and I wouldn't think you would have an issue tying 10 of these together with a single pull up resistor.

    What are you making that you need to have 10 of these devices in a system?

    Thank you,
    Adam
  • Hi  Adam,

    Customer needs this part to isolate the BMC with extral I/O signal, so need so many pcs in one board.

    Thanks,

    Antony