> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Tal Bejerano - AMC
> Sent: Tuesday, November 19, 2002 6:37 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [EE]: Implementing electronics
>
>
> Hi Picsters
>
> Found an interesting circuit on the web
> the author says' and I quote "Never let any unused input pins floating,
> always connect it to ground or V+."
>
> It ok with me.
>
> but follow that way it's pretty a mess when editing the pcb.
>
> for example he use the 4066 quad bilateral switch but use only one switch
> the other 3 stay unconnected and of course not used. my question
> is should I
> follow this order?
> even in the manufacturer's datasheet it's not mentioned.

The manufacturer has NO idea that you would NOT use all the device.
The advice to tie the inputs is sound.  As very high input impedance
antennas,
the device may begin switching to the noise it hears.  This causes further
NOISE in and out of the device.  It adds an increase in power supply
current.
It may even cause latch up.  So you decide, can you risk these effects?
>
>
> what should I do? is it correct?
>
> Regards
>
> Tal Bejerano
> AMC - ISRAEL
>
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