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SN74HC04: propagation delay

Anonymous
Anonymous
Guru 17045 points
Part Number: SN74HC04

Does the ~3.4ns delay refer to the single pair of CMOs transistors or all three inverters so for the overall gate?

  • 0
    TI__Guru* 96681 points

    Hi Andy,

    What do you mean by 'the ~3.4ns delay'?  I don't see a value that matches that in the datasheet, and 3.4ns is a bit fast for the HC family of devices.

    The characteristics in any logic datasheet will be tested on the complete device in question and would not indicate anything about individual internal stages.  In this case, the propagation delay, tpd, is measured from the input A to the output Y as indicated in this table from the datasheet: