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Help with flash chip datasheet, says maximum voltage on pins is 0.5V?

Discussion in 'General Electronics Discussion' started by Tristan369, Jul 20, 2021.

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  1. Tristan369


    Oct 29, 2020
    I saw it in one and then realized they all have it, this one Alliance Memory-AS29CF800T/B-55TIN says it very explicitly under the "notes" on page 6.

    It's powered by 5V but its pins can only be 0.5V at max? That can't be true? I don't actually have to voltage divide or use a buffer of some sort for all 27 pins do I?

    And then I just realized that right above there in the absolute maximum ratings it says the IO pins can handle -2.0 to 6.5V? So it should be fine using 5V for everything? Thank you.
  2. Bluejets


    Oct 5, 2014
    Probably a misprint......
    Then the next line says this..........
    During voltage transitions, input or I/O pins may overshoot to VCC +1.5V for periods up to 20ns.
    Tristan369 likes this.
  3. VenomBallistics


    Aug 30, 2018
    .5v is an impractical limit in this application. As such, I'm going to side with typonese
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