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Digital Electronics
NUMBER SYSTEM
BINARY CODES
BOOLEAN ALGEBRA
K MAPS
COMBINATIONAL CKT
INTRODUCTION
ADDER
FULL ADDER(FA)
FA using HAs
BINARY ADDER
SERIAL ADDER
PARALLEL ADDER
CARRY LOOK AHEAD ADDER (CLA)
QUESTION (BCD to Excess-3 using ADDER)
SUBTRACTORS
FULL SUBTRACTOR
FS using HSs
MORE QUESTIONS
SEQUENTIAL CIRCUITS
TIMING CIRCUITS

 

 

e.g. To implement the function F(A, B, C, D)= Σ (1, 2, 5, 7, 9, 14) using MUX using different variable as selection variable.

Let’s now take the variable A for input lines and B, C & D for selection lines.

N=4 so MUX is 2 N-1= 23 = 8 to 1

So min terms with A in compliment form are 0 – 7

So min terms with A in un-compliment form are 8 – 15

So we list the MIN TERMS as:

 

And the circuit diagram is shown next:

 

 

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