spec sheet for a 8308

[Dwight K. Elvey]

Hi
 I'm looking for a spec sheet on a 8308. I think it
is part of the older National Semi series DM8308.
It might be a 8303 ( the schematic is not to clear ).
I think it is an inverting 8 channel bus tranceiver.
I need information on which way the drivers go with
the direction control and is the enable true or false.
 Of course, a spec sheet would be great. Also, I
could use one of these IC's as well but I'm prepared
to make one with a couple of 74LS242's. I just
need a little more info.
Dwight