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LOGIC DESIGN LABORATORY MANUAL - VTU e-Learning Centre

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Logic Design Laboratory Manual 47<br />

___________________________________________________________________________<br />

<strong>DESIGN</strong> 2:<br />

Sequence = 1001011<br />

Sequence length S = 7<br />

Y = Q B (+) Q C<br />

Y<br />

3<br />

VCC<br />

14<br />

1<br />

Serial<br />

Input<br />

QA<br />

13 12 11<br />

2<br />

A<br />

2<br />

1<br />

QB<br />

3<br />

IC 7495<br />

B<br />

QC<br />

4<br />

INPUTS<br />

C<br />

QD<br />

10<br />

CLK<br />

8<br />

5 6 7<br />

D<br />

9<br />

Mode<br />

Control<br />

Gnd<br />

Q A Q B Q C Q D Y<br />

1 1 1 1 0<br />

0 1 1 1 0<br />

0 0 1 1 1<br />

1 0 0 1 0<br />

0 1 0 0 1<br />

1 0 1 0 1<br />

1 1 0 1 1<br />

1 1 0<br />

1 1<br />

1<br />

X X 1 X<br />

0 X 0 X<br />

X 1 X 0<br />

X 1 X 1<br />

<strong>DESIGN</strong> 3:<br />

Sequence = 1101011<br />

Sequence length S = 7<br />

Y = Q A + Q C + Q D<br />

X X X X<br />

X 1 1 X<br />

X 1 0 1<br />

X X 0 1<br />

VCC<br />

QA<br />

QB<br />

QC<br />

QD<br />

CLK<br />

1<br />

2<br />

13<br />

12<br />

Y<br />

Q A Q B Q C Q D Y<br />

1 1 1 1 1<br />

14<br />

13 12 11 10<br />

9<br />

8<br />

1 1 1 1 0<br />

0 1 1 1 1<br />

IC 7495<br />

1 0 1 1 0<br />

0 1 0 1 1<br />

1<br />

2<br />

3 4 5 6 7<br />

1 0 1 0 1<br />

1 1 0 1 1<br />

Serial<br />

Input<br />

A<br />

B<br />

INPUTS<br />

C<br />

D<br />

Mode Gnd<br />

Control<br />

1 1 0<br />

1 1<br />

1

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