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From: ardai@teda.UUCP (Mike Ardai)
Newsgroups: sci.electronics
Subject: Re: Design a bar graph
Message-ID: <16295@teda.UUCP>
Date: 4 Nov 90 15:31:26 GMT
References: <16307@s.ms.uky.edu>
Distribution: na
Organization: Teradyne EDA, Inc.
Lines: 14

In article <16307@s.ms.uky.edu> tindle@ms.uky.edu (Ken Tindle) writes:
-I have three binary lines, for eight possible states (yeah, oh wow).  How
-can one light seven LED's from this, with zero having all LED's off and
-seven lighting all seven of them, in bar graph fashion?

How about a ROM?  Just use an 82s123 PROM (or even a 2716 EPROM), feed
your three bits into the low address bits, ground all the rest, and drive 
your LEDS (through a buffer if needed) from the data bits.
/mike

-- 
\|/  Michael L. Ardai   Teradyne EDA East
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