Q-What is the difference between LATCH & FLIP-Flop? Ans: We can easily find the answer after going through the theory given: Latches are level sensitive while flip-flops are edge sensitive devices Hence latches faces problems like glitches in the output while no such problem occurs in flip-flops. As we can see from different circuits given […]
Tag: nand
Question 7: ANALYSIS OF NAND CIRCUIT
Q7- We implement the 3-input NAND gate circuit as follow and we are given the gate delay of d ns and 3 inputs are shown as: And give us the output of the circuit and compare it with the ideal output. Ans: Firstly we NAND of A&B is calculated and then it is inverter to get […]
Question: Implement XOR using NAND only
Q- Implement 2 variable XOR gate using NAND only in minimum number of gates. F= x XOR y = x’y+xy’ = x’y+xy’+xx’+yy’ = (x+y) (x’+y’) Now we need to implement this circuit using NAND gates F= (x+y)(xy)’ = x. (xy)’ + y. (xy)’ Take compliment F’= ( x. (xy)’ + y. (xy)’ )’ = (x. […]
Universal Gates
NAND and NOR gates are called universal gates as any digital function can be implemented by using only NAND or NOR gate alone. Combinational and sequential both type of circuits can be implemented using NAND or NOR gate. Let’s see how we can derive all basic gates from NAND: Let’s now see that how we […]