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Purpose of R33 on LV board

Tim Steele
2023-03-19
2023-03-22
  • Tim Steele

    Tim Steele - 2023-03-19

    I don't understand the purpose of R33 on the LV board. On the main board Vpp is supplied without a resistor in series, so presumably this should also be done for PIC devices running at 3.3v?

     
  • Alberto Maccioni

    There is a specific purpose, but at the moment I can't remember it (it was designed many years ago). I think it had to protect an input when using some alternative pinouts.

     

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