5 Sep
2007
5 Sep
'07
8:47 p.m.
On 5 Sep 2007 at 12:48, woodelf wrote:
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.
If your designs are old enough, there are a bunch. 7441 = BCD to 7-
segment gas tube driver. 7492, 7493 = 4 bit counter, 7473 = dual JK
FF, 7476 = dual JK FF and almost all of the other "non-7400" TTL
stuff, such as the MC400, 500, 2000, etc. series.
It seems to me that there was one oddball case of a 74L series chip
having a different pinout that the 74 "vanilla" flavor. Anyone
remember?
Cheers,
Chuck