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SN74LVC2G125: characteristics of Ioz

R.Fukunaga
Expert 2625 points

Part Number: SN74LVC2G125

Hi all,

1) The specified value of Ioz is 10uA.
There is no sign for plus or minus. Am I correct in understanding that there are both positive and negative leaks?
From the data sheet, Ioz is 10uA only in the positive direction.

Therefore, I think it represents the current flowing from the IC to the output pin. Since the output pin is supposed to be used at a voltage lower than Vcc, I think it is only written in the positive direction. Is this understanding correct?
Also, which one tends to have a higher leakage current due to the characteristics of the IC?

2) Regarding the characteristics of Ioz, how does it change with aging? It tends to decrease or increase with aging.

Best Rrgards,

Ryusuke

  • +1
    TI__Mastermind 27120 points

    Hi Ryusuke,

    Please see this definition we offer for IOZ:

    We only consider the current flowing into the device, hence we only consider a positive current leakage value. Due to the test conditions, the output pin can actually be driven higher or lower than VCC by external circuitry. Usually NMOS fets have higher leakage. 

    I don't have any data on how leakage current changes with aging so I can't give a confident answer. Leakage usually tends to increase with age. 

    Best,

    Malcolm