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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

 

Serial adder:

This is the one which would accept bit by bit input of the n-bit numbers and there is a bit by bit output of the n-bit Sum. In this adder we would be required one full adder and a memory element.

Hence we see we require lesser hardware. The circuit for serial addition is as follow:

 

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