8 Sep
2005
8 Sep
'05
6:54 p.m.
On Thu, 8 Sep 2005 21:04:34 -0400 (EDT)
William Donzelli <aw288 at osfn.org> wrote:
Has anybody ever tried to compile a complete, numerical list of the
functions or even copies of the datasheets, for the entire 74xx series?
Who was the issuer of the numbers who determined the sequence?
I used to (it's not as easy to find anymore) love going into surplus
stores and picking up random boards full of TTL, and figure out what the
board was just by the TTL gate part numbers.
I found the
SN7485 and SN7486 but no SN7480 (or
at least no datasheet).
7480s were made by several manufacturers, but it was never a hugely
popular chip - sort of in the "second-string" functions of early 74xx
TTL.
There are some real oddballs - 7459 is one (there was a thread on this
a few yars ago). I forget what it is - and I am not going to looking
it up again.