On 08:14 AM 3/28/01 -0600, Nicholas Cobb said:
>In a post about a month ago Mr. Lomax mentioned that leaving a CMOS input
>open could cause problems on a board.  Are there any references that will
>help me learn the details that might cause problems like this in commercial
>devices?  Up to this point I have been making circuit boards that will be
>used only by me.  I am just starting to work on some that will be mass
>produced.  Any sort of help would be appreciated.


Any number of electronics text books covering the topic of design with 
digital ICs will list several. Try "The Art of Electronics", by Horowitz & 
(sorry, I don't have the ISDN)

FWIW, the information you're interested in isn't generally encapsulated in 
its own chapter or subchapter, but interspersed throughout the text. 
Concentrate on the "digital circuits" sections, or use the index to find 
specific references to the topic.

Not to beat a horse dead, but the Internet is a great place to find 
information too.



Andrew J Jenkins. NCMR @ NASA-GRC

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