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SN74LVC2G126: About leaked current@SN74LVC2G126

teritama
Expert 2165 points
Part Number: SN74LVC2G126

Hi team

I'm thinking about constitution of SN74LVC2G126 with pull-down resister(1MΩ) at input when OE is Hi.

But, if I use this value resister, It can think that leaked current(±5uA) causes voltage upper than Vih.

So, I want to  know about how to estimate more accurate leaked current or whether leaked current can be lower than value of datasheet.

 Best regards.

teritama

  • 0
    Guru 316860 points

    That 5 µA specification is the worst case over temperate and age. In other words, you will see it only under extreme environmental conditions. In practice, the leakage current will be a few nanoamperes.

    However, there is no guarantee whatsoever for any lower value. As far as TI's official documentation is concerned, the only safe way to design your circuit is to use a pull-down of 220 kΩ or less.