OT: how big would it be?

From: allisonp_at_world.std.com <(allisonp_at_world.std.com)>
Date: Fri Oct 22 07:16:42 1999

> > IIRC, the 8080 was about 4000 MOSFET transistors. If you implemented it

And how many depletion load resistors.?

> Also true. A lot of the power estimates have been based on the assumption that
> we have bipolar transistors. What about discrete mosfets? We could do NMOS or
> even CMOS designs directly that way...

MOSFETS solve half the problem. There are still load resistors on the
chip never minding all of the registers are constructed like DRAM IE: they
are capacitors. That dynamic logic and memeory is very hard to simulate
at tyhe discrete level. If you simulate them using static cells the
transistor count goes up a factor of 6 for each BIT of register plus a
lot of resistors that dynamic logic does not use.

Allison
Received on Fri Oct 22 1999 - 07:16:42 BST