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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

 

GRAY TO BINARY:

We have already discussed the procedure for this and procedure can be described by following diagram:

From the diagram above we can derive the equations directly without any maps.

We know that B3 = G3 and B2 is calculated by adding B3 & G2 (ignoring carry) so B2= B3 xor G2

Similarly B1= B2 xor G1

B0= B1 xor G0

 

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