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Thread: grounding unused inputs
face BY : David VanHorn email (remove spam text)

At 05:46 AM 1/14/01 -0700, Jose S. Samonte Jr. wrote:
>Do unused inputs really need to be connected to ground?
>What is the effect if they are not grounded?
>Does it affect operation of the PIC?
>Thank you very much.

They don't have to be inputs on the pic, make them outputs, and let them float.

If you leave them as inputs, then yes, they should be connected to a logic
level, either high or low will do. Ground is probably slightly better for EMI.
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