Page 190 - FUNDAMENTALS OF COMPUTER
P. 190
190 Fundamentals of Computers NPP
Therefore one OR Gate can be made with AV… EH$ OR JoQ> H$mo Xmo NOR JoQ>m| H$s ghm`Vm
the help of two NOR Gates. go ~Zm`m Om gH$Vm h¡Ÿ&
Problem 3.45 àíZ 3.45
Draw XOR Gate using NAND: XOR JoQ> H$mo NAND H$s ghm`Vm go ~ZmAmo…
Solution: hc:
The symbol and equation for XOR Gate is: XOR JoQ> H$m g§Ho$V d g_rH$aU Bg àH$ma h¡:
A
B Y = A.B + A.B
First draw the basic gate Implementation: gd©àW_ Cnamoº$ g_rH$aU H$mo _yb^yV JoQ>m| go
~ZmZo na…
A NPP
B
Convert AND into NAND: XmoZm| AND JoQ>m| H$mo NAND _| ~XbZo na:
A
B
The two NOT Gates before OR can be OR JoQ> Ho$ BZnwQ> na pñWV XmoZm| NOT JoQ>m| H$mo
drawn as bubbles: ~~b Ho$ ê$n _| Xem©`m Om gH$Vm h¡…
A
B
