Logic gates, inverting output without increasing transistor count

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 2K views
sandy.bridge
Messages
797
Reaction score
1

Homework Statement


Hello all,
I have the following logic gates:
(A'.(B+C))' which I had reduced to A+B'.C'. I then want use a NAND gate connected to a NOR gate, then connected to an inverted. However, I have been informed that I need not to use ten transistors, and that 8 can get the job done. How exactly can I invert the output after the NOR gate without the addition of new transistors?
 
Physics news on Phys.org
Can you use an OR gate instead of NOR + NOT?

Otherwise, draw the arrangement you propose using, and you may be able to spot where you can economize on the number of gates.

B'.C' can be converted to a NOR
 
Last edited:
Thanks, I managed to get it. It was a lot more simple upon developing and then utilizing a truth table.