What is the difference in these two chips?

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  • Kg74
    Senior Member
    • Feb 2013
    • 67
    • Usa
    #1

    What is the difference in these two chips?

    Need to know if I can swap a LS166A where a LS116 was originally used.

    Here are the two data sheets:

    https://cdn.badcaps-static.com/pdfs/...155c3f6a59.pdf

    https://cdn.badcaps-static.com/pdfs/...02a79082ff.pdf

    Am I right in thinking they are interchangeable and the "A" is the latest model?

    I have asked the people at DigiKey and they didn't know and I have sent an email to LSI and they never responded.

    Application is for motor control on a telescope.

    Thanks
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30991
      • Albion
      #2
      Re: What is the difference in these two chips?

      they are electrically compatable,
      the "A" can run faster though. 25MHz vs 40MHz
      Last edited by stj; 03-23-2021, 06:02 PM.

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