5 Sep
2007
5 Sep
'07
11:41 p.m.
Chuck Guzis wrote:
Don;'t you mean 7483 here? The 7486 is a quad XOR gate, pinout similar to
the 8400, and with corner supply pins.
The 74283 is a 4-bit adder with a more sane pinout (and corner supply pins).
Someone wrote:
PS. Iv'e got the 7400 pinout downloaded already. :)
Just remember that the 7401 is not an OC version of the 7400. :)
I've got to keep going back to the databook for the chips with
"middle" supply pins, like the 7475.
I don't use 4 bit latches. No problem for me :)
Other than the 4 bit adder 7486 I can't think of any common chips with middle supply pins.
The ones I come acorss most often are the 7490, 7492, 7493 counters.
-tony