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From: "Lord Garth"
Subject: Re: 8bit binary to BCD?
Date: Mon, 28 Oct 2002 14:59:20 -0600
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"Ash" wrote in message
> haven't studied digital engineering for almost a decade so the memory is a
bit rusty :)
> Anyways, thing is I got an 8 bit paralell binary databus I need to hook up
to 3 7-segment
> displays. Strobing the bus ic you get bit 1-2-4-8-16-32-64-128 high and I
want to convert it
> to BCD to use a simple bcd-led driver ic (something like the 4511).
> The bus signals are constant high or low when strobed so speed/memory is
not essential -
> I simply want to translate the binary to display the corresponding numbers
on the display
> when I apply the strobe...
> Anyone have any ideas? I thoght of 74184 but it's not been manufactured
for some time,
> I'm not asking for a complete solution - but I sure need a few pointers in
the right direction
Use an EPROM and encode your own converter. 3 EPROMS will give you 24 bits
of output and you need 21. Parallel the 8 bits to each EPROM. Old 2732's
8 times the capacity you'll need.
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