15 May
2001
15 May
'01
2:07 a.m.
On Tue, 15 May 2001 13:45:06 +0200 Hans Franke
<Hans.Franke(a)mch20.sbs.de> wrote:
When where the first 74xx ICs released / designed
?
Late 1960s/Early 1970s, I think. Especialy when
where complex chips like 744x, 748x or
74181 first mentioned/available ?
Probably early 1970s. The story I've heard is that Texas Instruments
wanted to
build a computer for oilfield instrumentation (hence the
name of the company). They built it by first designing a
range of SSI (Small-Scale Integration) gates as TTL chips,
then building the system with them. The chips were sold as
the 7400, 7401, and so on, and the rest is history!
:))
I have a 74 TTL design guide at home, so I'll
check it too.
The oldest datasheet I could find says Dec 1972 for the 74S181
Gruss
H.
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