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Discussion Groups | Piclist | where to connect the unused pins 16f877 to avoid the noise

A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.

where to connect the unused pins 16f877 to avoid the noise - R Ramesh - Oct 8 7:22:00 2003

Hi all
I planned to improve my cicuit free of noise.
For what we have to do the unused pins in 16F877.
 Need to connect directly to ground or through an resistor or any other way?
 
Thx
Ramesh
 


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Re: where to connect the unused pins 16f877 to avoid the noise - Rick C. - Oct 8 7:40:00 2003

If you know for sure they are not going to be used (port pins), make them outputs. Otherwise unused pins should be pulled to V+ through resistors around 10k. If you just ground them, an inadvertant command sending them high will damage the pic.
Rick

R Ramesh wrote:

 Hi allI planned to improve my cicuit free of noise.For what we have to do the unused pins in 16F877. Need to connect directly to ground or through an resistor or any other way? ThxRamesh 


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Re: where to connect the unused pins 16f877 to avoid the noise - Fagundes Elétrica - Oct 11 14:00:00 2003



jUST configure these pins like outputs! >From: R Ramesh <>
>Reply-To:
>To:
>Subject: [piclist] where to connect the unused pins 16f877 to avoid the
>noise
>Date: Wed, 8 Oct 2003 05:22:46 -0700 (PDT)
>
>Hi all
>I planned to improve my cicuit free of noise.
>For what we have to do the unused pins in 16F877.
> Need to connect directly to ground or through an resistor or any other
>way?
>
>Thx
>Ramesh >
>---------------------------------
>
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