EGG Half Dozen

More Argument on EGG Half Dozen.

Hopefully by now people have the hardcopy in hand and can look at
the two IV curve groups. If we have no argument on how they look
(at least, in general appearance) then my problem is this:

As the "control" voltage changes on the CMOS gate only the IV curve
strength changes. The zero millamp point stays constant (at ~VCC) this
makes sense as all we are doing is making the CMOS gate more resistive.

The TTL gate, however, changes its zero milliamp point, it being a totem
pole arrangement and all.

The point is, at risetime/2, what is the proper thevinin equivalent for the
driver? You have to know if it is CMOS or TTL. If there is a fool proof way
to determine this form the IV curve alone, they we are done, else I would
like a new (optional?) KEYWORD.

regards,
jon

(I hope I got this HALF-DOZEN joke out before bob or will).

(If you still need hardcopy, let me know. Won't it be nice when I can just
post HTML to a WWW EGG discussion page?).
Received on Thu Aug 10 10:43:05 1995