COMBINATIONAL LOGIC

COMBINATIONAL CIRCUIT A combinational circuit consists of logic

gates whose outputs at any time are determined directly from the present inputs without regard to previous inputs.

DESIGN PROCEDURE

HALF ADDER

IMPLEMENTATION OF HALF ADDER

FULL ADDER

IMPLEMENTATION OF FULL ADDER

IMPLEMENTATION OF FULL ADDER

IMPLEMENTATION OF FULL ADDER WITH TWO HALF ADDERS AND AN OR GATE

HALF SUBTRACTOR

IMPLEMENTATION OF HALF SUBTRACTOR

FULL SUBTRACTOR

FULL SUBTRACTOR

CODE CONVERSION: EXCESS 3 CODE

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