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SN74ABT574A Maximum Ground Current


The 74ABT574A specifies a maximum current per output pin of IOH=-32mA, IOL=64mA.  Is there a maximum current limit for the power and ground pins with all IO pins sourcing 32mA or sinking 64mA?


Keith N.

  • Hi Keith ,

    Within the recommended operating conditions of IOH / IOL , the Vcc/gnd pins can withstand the continuous current through it. Please be aware to take into account the Icc (and/or delta Icc) when inputs are not at the rails .
    I do not see a spec on the datasheet on the abs max continuous current though Vcc/gnd .