[Free] Old Data Books (Australia)

Chuck Guzis cclist at sydex.com
Wed Sep 5 14:47:26 CDT 2007

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 


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