2 Jun
2006
2 Jun
'06
5:17 p.m.
Ethan Dicks wrote:
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.
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 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.
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