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SN74AHC244: SN74AHC244MPWREP

Tamren Smith
Prodigy 205 points
Part Number: SN74AHC244

Tool/software:

Is the part number referenced in the E2E thread title going obsolete? Is there a drop in replacement available for this part? SN74AHC244MPWREP is there an alternate part recommended for usage? If you can provide any information on this that would be helpful.

  • 0
    TI__Genius 9311 points

    Hi Tamren,

    Yes, this part is going obsolete.

    Some replacements include SN74ALVC244IPWREP, SN74HC244QPWREP, or, if you no longer need EP, SN74AHC244PWR.

  • 0 in reply to Ian Graham
    Prodigy 205 points

    These parts don't seem to be drop in replacements. Can you provide any technical differences that these parts have? I also see on a PCN that SN74LV8T244MPWREP is the recommended replacement. Why are you recommending the ones recommended over the part recommended on the PCN? Could you also answer the questions below?

    • Differences between the original and replacement parts
    • Compatibility and interchangeability (Form fit function)
    • Reason for obsolescence
    • Is the new part available now or when will it be ready for production/purchasing



  • 0 in reply to Tamren Smith
    Guru 316440 points

    All replacements have different electrical characteristics. The LV-T device has higher drives strength; the ALVC does not support 5 V and has higher drive strength; the HC has lower drive strength.

    All replacements are active, but only the ALVC has stock.