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Old 01-08-2008, 02:35 PM   #2
shadow
Badcaps Veteran
 
Join Date: Feb 2007
City & State: Melbourne, Victoria
My Country: Australia
Posts: 725
Default Re: Mixing logic families

I have not looked at those chips yet, however mixing logic families can give you alot of problems. The chips that you use have to be compatible with each other otherwise it is a real nightmare getting it to work the way you would want it. The easiest way of making sure that chips are compatible is to use chips from the same series from the same manufacturer if possible. That way you do not need to look at data sheets and deduce whether your chips will work with each other.

Having said this, the main aspects that you will be interested in the datasheet is the minimum voltage recognised as a 'high' and the maximum voltage recognised as a 'low'.
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