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SN74LV07A: Similar part

Amanda Ross95
Intellectual 2740 points
Part Number: SN74LV07A
Other Parts Discussed in Thread: SN74LVC1G99, SN74AUP1G99, SN74AHC125

Hello there,

I'm wondering if we have a similar device to this hex buffer but with open-collector outputs and hysteresis?

I checked ESP but was unable to find anything that could match the input supply range on the SN74LV07A. 

Let me know what you'd recommend. Thanks for your time. 

-Amanda

  • 0
    TI__Guru* 96661 points

    Hi Amanda,

    I'm afraid that I have never seen a device with both Schmitt-trigger inputs and open-drain outputs. This was actually pretty surprising to me the first time I noticed it... I would have though that with over 20,000 parts, we'd have at least one with this combo!

    Can you tell me more about the application? Perhaps I can help.

  • 0
    Guru 256980 points

    Any buffer with an O̅E̅ pin can be made to have an open-drain output by using O̅E̅ for the input signal. (xx125 buffers are available in many families.)

    But the only devices with both O̅E̅ and Schmitt-trigger inputs are SN74LVC1G99 and SN74AUP1G99. That would require six 8-pin chips; combining xx14 with xx07 would be simpler.

    Some logic families, such as AHC, have a little bit of Schmitt-trigger action at their inputs. However, the hysteresis is only about 200 mV (real xx14 Schmitt triggers have about 800 mV) and is not suitable for rise/fall times slower than 50 ns, so the SN74AHC125 probably would not work for you.

  • 0 in reply to Clemens Ladisch
    TI__Intellectual 2740 points
    Thank you both for your feedback!