6 Sep
2007
6 Sep
'07
7:28 a.m.
On 6 Sep 2007 at 2:02, Roy J. Tellason wrote:
I do have an old TI databook around someplace but
it's currently buried in
some box somewhere and I have *no* idea which box at present.
http://www.datasheets.org.uk/databooks/databook.php?q=32 has a 1978
Ferranti IC book that shows both vanilla and L-series pinouts. One-
page-at-a-time-with-an-enter-what-you-see-displayed-prompt. But it's
there.
The 7486/L86 was what I was thinking of, but Tony added others. Over
the years, I've run into otherwise rational people who swore that it
just couldn't be--that the only major differences were speed,
fanin/out and power.
Another gotcha is that some "vanilla" 74xx flip-flops are level-
triggered while their LS counterparts are edge-triggered.
My first LED clock used 7492s and 7493s.
Anyone know if the old TI TTL Databook is online anywhere? I've
found some individual TTL datasheets on the TI site, but I'd like to
see the whole thing as a downloadable file.
Cheers,
Chuck