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SN74LVC1G07: output level question

Part Number: SN74LVC1G07
Other Parts Discussed in Thread: SN74HCS21, SN74HCS08, SN74LVC08A


I have a question about SN74LVC1G07.

VCC(3V3_PEX) voltage level with impact output (Y) voltage level?

If Tri_REG_PG use 3.3V is ok? thanks!


  • The '07 has an open-drain output, so the supply voltage does not directly affect the output voltage; the pull-up voltage can be higher or lower. (A higher supply results in higher drive strength for a low output, but this does not matter in this application.)

    The input voltage should be at least as high as the supply (actually, VIH); 3.3 V is OK.

    (All those Schottky diodes are not cheap; if the inputs have matching voltages, consider AND gates like the SN74HCS08/SN74HCS21/SN74LVC08A.)