74xx orgin

From: Hans Franke <Hans.Franke_at_mch20.sbs.de>
Date: Tue May 15 11:14:17 2001

> > When where the first 74xx ICs released / designed ?
> > Especialy when where complex chips like 744x, 748x or
> > 74181 first mentioned/available ?
 
> > This may be a stuipd question, but I couldn't find any
> > information ... so all I have is my personal guess (~1970)
> > and the oldesd TTL book Philip Belben could find (1972).

> > Anyone more informed ?

> I think you guys are going to have to use DTL. If TTL was even around in
> 1970, it was probably pretty expensive at first.

You know why we need this info ...(big secret until some
day)... and in this context to expensive wasn't a real
issue.

Ciao
Hans

--
VCF Europa 3.0 am 27./28. April 2002 in Muenchen
http://www.vcfe.org/
Received on Tue May 15 2001 - 11:14:17 BST

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