Noise on input signal

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  1. - 27th February 2012, 21:48 #1
    fanman's Avatar
    fanman
    fanman is offline Junior Member
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    Default Re: Noise on input signal

    Hey guys,

    Was just reading online that some people tie each unused pin to ground using a resistor (about 1k)? I tied mine directly to ground. Is this the correct method?

    http://www.piclist.com/techref/logic/xtrapins.htm

    c    heers

    Mark.
  2. - 28th February 2012, 02:55 #2
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    spcw1234
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    Default Re: Noise on input signal

    The only real benefit I know if with using a resistor, if you accidentally set the pin to a high state, the pin will be fried due to a direct short to ground. With a resistor the current will be limited and prevent damage to the pin.
    Shawn
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