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LOGIC DESIGN LABORATORY MANUAL - VTU e-Learning Centre

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Logic Design Laboratory Manual 53<br />

___________________________________________________________________________<br />

MOD-8 DOWN COUNTER<br />

CIRCUIT DIAGRAM:<br />

TRUTH TABLE<br />

CLK Q C Q B Q A<br />

0 1 1 1<br />

1 1 1 0<br />

2 1 0 1<br />

3 1 0 0<br />

4 0 1 1<br />

5 0 1 0<br />

6 0 0 1<br />

7 0 0 0<br />

8 1 1 1

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