This conversation is priceless for us newbees!  For this of you who want
more, be sure to check the links these guys are supplying.  I followed
Dave's link and found an informative discussion on board layout at
http://www.dvanhorn.org/Micros/All/Bypass.php

Thanks again,
Jay

>-----Original Message-----
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of David VanHorn
>If you look at what you're trying to decouple, you can do a better job,
>rather than just shotgunning it.  Shotgunning can also induce problems.
>(you have a 15 ohm resistor in series with the VCC supply, right)
>
>Generally, smaller caps for higher frequencies.
>It is also important that the PCB layout supports bypassing.
>Layouts that have the cap from VCC on one chip to GND on another chip are
>fatally broken.
>
>I generally use a few zero ohm resistors to steer grounds, a few 1-10 ohm
>resistors, a few 0.1 and/or 0.01uF caps, and that's about it.
>
>--
>Dave's Engineering Page: http://www.dvanhorn.org

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