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Digital Electronics
NUMBER SYSTEM
BINARY CODES
BOOLEAN ALGEBRA
BINARY LOGIC
LOGIC GATES
BOOLEAN ALGEBRA LAWS
CONSENSUS THEOREM
DIFFERENT FORS OF BOOLEAN EQUATIONS
RELATION B/W MAX & MIN TERMS
16 type of LOGIC FUNCTIONS
AND & OR GATE
Other GATES
XOR & XNOR gates
NEGATED & COMPLIMENTRY GATES
TRISTATE gates & DIP
Illustration of NEGATIVE & POSITIVE LOGIC
Relation B/W XOR & XNOR gates
UNIVERSAL GATES
Implementation of XOR using minimum gates
Implementation of XNOR using minimum gates
Different levels of CIRCUIT
Special Characteristics of an IC
QUESTIONS
Q1 (Timing Diagram)
Q2 (Timing Diagram)
Q3 (Timing Diagram - DIfferent units)
Q4 (Timing Diagram)
Q5 (Output of Series of NOR gate )
Q6 (Output of combination of XOR )
Q7 (Circuit of NAND gates & diff delays)
K MAPS
COMBINATIONAL CKT
SEQUENTIAL CIRCUITS
TIMING CIRCUITS

 

 

 

Q5- What is the output of the following circuit?

Ans:  This circuit may look simple to you as one has to just evaluate every NOR gate and get the final output but I say it is even simpler than this. Let’s analyze the truth table of NOR gate:

 And we see that even if only one of the 2 inputs is 1 then we need not find out the other input and we can get the output.

As in the above circuit we have one input as 1 to the last NOR gate so we can say that output of the above circuit is ‘0’ without calculating the outputs of other NOR gates.

 

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