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PS/2 Keyboard Spec Question — Parallax Forums

PS/2 Keyboard Spec Question

Paul K.Paul K. Posts: 150
edited 2008-04-04 06:25 in Propeller 1
Can this keyboard run off 3.3v and is anyone currently running it this way?

Thanks
Paul

Comments

  • ForrestForrest Posts: 1,341
    edited 2008-04-03 16:43
    PS/2 keyboards typically run off +5V
  • Paul BakerPaul Baker Posts: 6,351
    edited 2008-04-03 16:44
    No, PS/2 devices need 5V.

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.
  • Paul K.Paul K. Posts: 150
    edited 2008-04-03 17:40
    Here's one more for you guys.

    Can the pull up resistors be 4.7k instead of 10k on the ps/2 clock and data lines. If not is there a specific reason why?

    Paul
  • Paul BakerPaul Baker Posts: 6,351
    edited 2008-04-04 06:25
    yes 4.7k should work fine.

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.
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