Binary to BCD converters

[Philip]

KA4HJH wrote:
> 
> >> Is there an easyway (ie IC) that converts binary numbers (8bit in this
> >> case)to BCD for driving 7seg displays? (maybe I'm missing something but
> >> it looks like a dificult conversion.
> >
> >   74185  TTL
> >   CD4028 CMOS
> 
> The 4028 is a binary to decimal decoder, i.e., it has ten discrete outputs.
> 
> The 4511 is a BCD to 7-segment latch/decoder/driver. It can be
> zero-blanked, multiplexed, dimmed, etc. Impressive.
> 
> Don't have time to look up TTL. Sorry.


Thanks Tony and Terry,

However it does not help :( I'll restate the question:

How do I easily convert an 8 bit binary number to 3 BCD numbers?

So far an EPROM lookup method seems like the only solution (brute force
too). (Apart from a PAL)

Actually I need to display the 8 bit data in my UP project as a 3 digit
number. For instance

0111 1111 will be displayed as 1 2 7

by mis-applying the suggested  4 bit binay to BCD converter to each
nibble I would get a 2 digit meaningless number. Is there a simple way
of doing this conversion using specific ICs?. 

aside-I did see a cool 16 Binary to angle "degrees" BCD format IC in my
web searches http://www.fttech.co.uk/ft1617.html. We use these devices
on antennas wher I work :)

Philip

-- 
Philip Pilgrim                  The Lab Audio Works
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