[sdiy] Art of electronics computer

Harry Bissell harrybissell at wowway.com
Mon Jan 9 21:03:47 CET 2012


I think that any direct drive 7 segment display can be considered "hexadecimal". It can display the
necessary segments to make all the characters in the hexidecimal set.

I don't know of a direct 'hex' driver chip that takes 4 bit binary and outputs this character set. There ~was~ one (once)
for hex on an LCD display.

The CD4511 is a good example of a driver that will NOT display hex characters. The "a" - "f" are blank...

H^) harry


----- Original Message -----
From: Dan Snazelle <subjectivity at hotmail.com>
To: Steve Galle <stevegalle at gmail.com>
Cc: synthdiy diy <synth-diy at dropmix.xs4all.nl>
Sent: Mon, 09 Jan 2012 14:48:37 -0500 (EST)
Subject: Re: [sdiy] Art of electronics computer

I dont believe that is hexadecimal

Sent from my iPhone

On Jan 9, 2012, at 2:31 PM, Steve Galle <stevegalle at gmail.com> wrote:

> Something like this? 
> http://parts.digikey.com/1/parts/1631661-led-7-seg-7-6mm-ca-he-red-hdsp-7501-cd000.html
> 
> On Jan 8, 2012, at 1:32 PM, David G Dixon wrote:
> 
>>> They specify the HP 5082-7340 but i think others would work.
>>> Anyone know where to find those cheaply?
>> 
>> AFAIK, it is impossible to find hex displays today.  I tried to find some
>> for a step sequencer thingy I was working on a while ago, and everything I
>> found was long obsolete and unobtainium.  I wanted a 7-segment display
>> driver that would give 0 1 2 3 4 5 6 7 8 9 A b C d E F out, but this is not
>> to be had anymore, apparently.
>> 
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> 
> 
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-- 
Harry Bissell & Nora Abdullah 4eva



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