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Article #17200

Re: active high TTL decoders?

#17200
From: Colin Kelley
Date: Thu, 22 Jan 1987 02:28
31 lines
1976 bytes
Thanks to everyone who was kind enough to help out.  The suggestions I received
fell into four categories:

1. phil@amdcad.UUCP (Phil Ngai):  USE A PAL!

I guess I should have mentioned in my posting that I'm a student, and I need
this IC for a senior project.  I actually had to get the EE Dept. here to
order an EPROM burner!  I guess they'll have a PAL programmer in about 25
years.  Maybe AMD has a school-donation program?

2. phred!loreng (Loren Gahnberg): 74HCT238
I don't have any data books here that list this IC, but I see JDR (the mail-
order place where I usually get this stuff) carries them for $1.49.  Not
bad at all...

3.  reichel@cookie.dec.com, kvvax4!truls (Truls Ellefsen),
herzog@leadsv.LEADS.LMSC.COM (Jordan Herzog), kontron!andyt (Andy Thornton):
74F538 or 25LS2538
These sound like pretty snazzy chips, with enables and tri-states and an
output polarity selection pin.  Dave Miller mentions a price of $4.15/ea, but
I see that JDR carries the 25LS2538 for $3.74/ea, as compared with $.39 for
the plain old 74138...

4. LOTS of people:  74259
This is a neat solution because I've already got a couple spare.  It's a
little slower than the others, but that's not problem.  BTW it goes for $1.29.

Thanks again for all your help.  I apologize if I wasn't able to respond to
your suggestions individually...

	-Colin Kelley  ..{cbmvax,pyrnj,psuvax1,bpa}!vu-vlsi!colin
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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!cbmvax!vu-vlsi!colin
From: colin@vu-vlsi.UUCP (Colin Kelley)
Newsgroups: sci.electronics
Subject: Re: active high TTL decoders?
Message-ID: <577@vu-vlsi.UUCP>
Date: Wed, 21-Jan-87 21:28:25 EST
Article-I.D.: vu-vlsi.577
Posted: Wed Jan 21 21:28:25 1987
Date-Received: Thu, 22-Jan-87 20:37:21 EST
References: <571@vu-vlsi.UUCP>
Reply-To: colin@vu-vlsi.UUCP (Colin Kelley)
Organization: Villanova Univ. EE Dept.
Lines: 31
Summary: Summary of responses