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

Q3- Sometimes delay of gates and the waveforms are given in different units. So let’s take such example with same circuit and delay as above but waveforms as below:

Ans: So we convert the delay into ps (Pico seconds)

So delay for NOR= 3ns = 3000ps

Delay for BUFFER =1ns=1000ps

Delay for AND=4ns=4000ps

So the waveforms of Output are as follow: