4 bit decoder question?
- From: jlerch@xxxxxxxxxxxxxxxxxxxxxxx (James Lerch)
- Date: Mon, 21 Nov 2005 06:26:14 GMT
Greetings Gents,
Simple question. I would like to selectively turn ON / OFF any one of
16 SSR's using a 4 bit address, obviously I'd use another bit to
select the state I would like the previously addressed device to have.
I've been looking at a few decoder / demultiplexers like the 74HCT154.
I was excited for a moment, but then realized that I'd have to come up
with a latching scheme for the outputs.
Do they make a DIP chip that already includes some type of state
addressable output with out altering the un-addressed states? If not
any simple ideas on the best way to approach this hardware problem?
(I'm sure I'm not the first fool to want to do something like this :)
OH yea, if your curious, I just want to "Geek Out" with Christmas
lights this year :)
Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction, Testing, and Coating site)
http://lerch.no-ip.com/ChangFa_Gen (My 15Kw generator project)
Press on: nothing in the world can take the place of perseverance.
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Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent.
Calvin Coolidge
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