I am attempting to connect a pair of CD4048 8-input
expandable gates together to form a 16-input nand gate. I did
not do a very thorough job of writing down some of the notes
which, as I recall weren't all that good to begin with so I have
a question or two.
Pin 15 is labeled as Expand. Is this an input or an
output? What do you do with it on a CD4048 that is being used as
an 8-input device by itself?
When cascading multiple gates, do you connect the J
output pin to the Expand pin of the following gate?
The rest, I think I can figure out. Hu rah for wire-wrap!
Martin McCormick WB5AGZ Stillwater, OK
OSU Center for Computing and Information Services Network Operations Group
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Author: Martin McCormick
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