3 Jun
2006
3 Jun
'06
1:49 a.m.
On Friday 02 June 2006 08:17 pm, Brent Hilpert wrote:
Ethan Dicks wrote:
There's much of that in my chart at:
http://www.classiccmp.org/rtellason/by-generic-number.html
but I have bunches more data to get, still.
On 6/2/06, Roy J. Tellason <rtellason at
blazenet.net> wrote:
RTL: 7xx, 8xx, 9xx (etc...)
DTL: 8xx, 9xx, 18xx, 19xx (etc...)
At the decade level the grouping makes more sense. Yeah, but that ain't DTL, that's TTL,
I still have a bunch of it. I
forget what the DTL numbers were but I think they're up in the 9xxx
range.
What about the Motorola 7xx and 8xx parts? DTL or RTL?
-ethan There were actually lots of other series of SSI
RTL/DTL/TTL ICs made in the
60s, by both the major manufacturers and smaller players, in addition to
the various 'standard' series.
I've heard that, in particular that Fairchild had made some early TTL in the
9000 numbers, I think it was? But I seldom run across any of that info at
all, these days, and didn't then. First TTL databook I have goes back to
about 1970, and is a TI book with the standard, H, and L series in it only.
I received an email request from a fellow in Cuba a
year or two ago, asking
for info about a non-standard TTL-class series of ICs (59xx) made by
Mitsubishi in the late 60s (I have info about some ICs of the series).
Apparently the series had been used in the first Cuban minicomputer
which he had worked on the design of, around 1970.
Mitsubishi? I didn't even know they made TTL. Feel free to pass any info
along and I'll include it in my charts...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin