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LOGIC DESIGN LABORATORY MANUAL - VTU e-Learning Centre

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Logic Design Laboratory Manual 7<br />

___________________________________________________________________________<br />

I. TO REALIZE HALF ADDER<br />

TRUTH TABLE<br />

INPUTS OUTPUTS<br />

A B S C<br />

BOOLEAN EXPRESSIONS:<br />

S=A ⊕ B<br />

C=A B<br />

0 0 0 0<br />

0 1 1 0<br />

1 0 1 0<br />

1 1 0 1<br />

i) Basic Gates ii) NAND Gates<br />

II.<br />

FULL ADDER<br />

TRUTH TABLE<br />

INPUTS OUTPUTS<br />

A B Cin S C<br />

0 0 0 0 0<br />

0 0 1 1 0<br />

0 1 0 1 0<br />

0 1 1 0 1<br />

1 0 0 1 0<br />

1 0 1 0 1<br />

1 1 0 0 1<br />

1 1 1 1 1<br />

BOOLEAN EXPRESSIONS:<br />

S= A ⊕ B ⊕ C<br />

C=A B + B Cin + A Cin<br />

i)BASIC GATES

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