Saturday, April 18, 2015

Digital Electronics Logic Gates



Logic circuits
Where 0 (Low) & 1 (High)

In this I've made it as simple as possible...


Sr no 1) That is AND GATE whose IC number is 7408 has high output when both the inputs are high.
 (i.e) A=1 , B= 1 , Y=1 
Note:-> For all the other combinations of inputs the output would be 0.

Sr no 2) That is OR GATE whose IC number is 7432 has low output when both the inputs are low.
 (i.e) A=0 , B= 0 , Y=0 
Note:-> For all the other combinations of inputs the output would be 1.

Sr no 3) That is NOT GATE whose IC number is 7404 has low output when both the inputs are low.
 (i.e) A=0 , Y=1
Note:-> For all the other combinations of inputs the output would be 0.


Sr no 4) That is NAND GATE whose IC number is 7400 has low output when both the inputs are low.
 (i.e) A=1 , B= 1 , Y=0 
Note:-> For all the other combinations of inputs the output would be 1.


Sr no 5) That is NOR GATE whose IC number is 7402 has low output when both the inputs are low.
 (i.e) A=0 , B= 0 , Y=1
Note:-> For all the other combinations of inputs the output would be 0.

Sr no 6) That is EX-OR GATE whose IC number is 7486 has low output when both the inputs are low.
 (i.e) A=0 , B= 0 , Y=0
A=1 , B=1 , Y=0 
Note:-> For all the other combinations of inputs the output would be 1.