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Article #17198

Re: active high TTL decoders?

#17198
From: Jon Hue
Date: Thu, 22 Jan 1987 03:00
29 lines
2003 bytes
In article <14394@amdcad.UUCP>, phil@amdcad.UUCP (Phil Ngai) writes:
> In article <571@vu-vlsi.UUCP> colin@vu-vlsi.UUCP (Colin Kelley) writes:
> >I'm looking for a 1-of-8 decoder (like the 74138) but with active high
> >outputs.  I've looked through several TTL data books, but I haven't been
> 
> Get with it, guy! Where have you been the last six or so years? Use a
> PAL. TTL is obsolete and dead. For high speed, PALs come in D

(vu-vlsi == Villanova University)
C'mon Phil, lighten up.  Remember what it was like being in college?  I don't
remember bins of EPALS, Stag PAL programmers, or CUPL running on Sun
workstations.  I do remember protoboards, 74LS parts, programming EPROMS on
an HP64000 and a TA that couldn't speak English.  The only people my age (23)
I know that used PALs in college as undergraduates went to Stanford.

Without walking over to my bookcase, I have found the TI 74HCT238 in the
high-speed CMOS databook.  Don't know if you can find it in LS or ALS, but
the HCT will work with LS parts.  The 238 is like the 138 except the outputs
are inverted.

By the way, how does everyone like the new logic symbols?  I like them, you
can tell what a chip is doing without looking at the logic diagrams.


"If we did it like everyone else,	  Jonathan Hue
what would distinguish us from		  Via Visuals Inc.
every other company in Silicon Valley?"	  sun!sunncal\
						      >!leadsv!eps2!jon
"A profit?"				amdcad!cae780/
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Message-ID: <56@eps2.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!sri-unix!hplabs!cae780!leadsv!eps2!jon
References: <571@vu-vlsi.UUCP> <14394@amdcad.UUCP>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!sri-unix!hplabs!cae780!leadsv!eps2!jon
From: jon@eps2.UUCP (Jon Hue)
Newsgroups: sci.electronics
Subject: Re: active high TTL decoders?
Message-ID: <56@eps2.UUCP>
Date: Wed, 21-Jan-87 22:00:57 EST
Article-I.D.: eps2.56
Posted: Wed Jan 21 22:00:57 1987
Date-Received: Thu, 22-Jan-87 19:57:31 EST
References: <571@vu-vlsi.UUCP> <14394@amdcad.UUCP>
Organization: New Depths of Depravity
Lines: 29
Keywords: ICs
Summary: TI 74HCT238