I need to convert the following expression to use NAND gates only by using De Morgan's Theroem. I have looked at several threads and still don't quite understand the steps taken to do this.
I have given it a go below by first inverting experessions, then the whole expresssion and then changing or's to and's.
Original Expression: (A'BC'D')+AB'D'+AB(C'D+CD')
Invert individually: (A'BC'D')'+A'BD+A'B'(C'D+CD')'
Invert whole expression: (A'BC'D')'+A'BD+A'B'(C'D+CD')''
Change or's to and's: (A'BC'D')'A'BDA'B'(C'DCD')''
Well that is my attempt, im almost certain that i've gone wrong as i don't understand the following:
1. What to invert (i've inverted the whole inputs in brackets and then inverted inputs that weren't and took off the inverter that was there on inputs if they aren't in brackets.
2. I needed to get the or's to and's and didn't understand how his was done so i simply just changed it.
Any help is appreciated. If it helps it will have to later be put into a logic gate diagram which i should have no problems at.
Thanks
I have given it a go below by first inverting experessions, then the whole expresssion and then changing or's to and's.
Original Expression: (A'BC'D')+AB'D'+AB(C'D+CD')
Invert individually: (A'BC'D')'+A'BD+A'B'(C'D+CD')'
Invert whole expression: (A'BC'D')'+A'BD+A'B'(C'D+CD')''
Change or's to and's: (A'BC'D')'A'BDA'B'(C'DCD')''
Well that is my attempt, im almost certain that i've gone wrong as i don't understand the following:
1. What to invert (i've inverted the whole inputs in brackets and then inverted inputs that weren't and took off the inverter that was there on inputs if they aren't in brackets.
2. I needed to get the or's to and's and didn't understand how his was done so i simply just changed it.
Any help is appreciated. If it helps it will have to later be put into a logic gate diagram which i should have no problems at.
Thanks