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HEF4015BU

Dual 4-bit static shift register

Philips Electronics 

Philips Semiconductors

Dual 4-bit static shift register

LOGIC DIAGRAM (one register)

Product specification

HEF4015B

MSI

Fig.3 Logic diagram.

FUNCTION TABLE

INPUTS

OUTPUTS

n CP D MR O0 O1 O2 O3

1

D1 L

D1

X

XX

2

D2 L D2 D1 X X

3

D3 L

D3 D2 D1 X

4

D4 L

D4 D3 D2 D1

XL

XXH

no change

L L LL

Note

1. H = HIGH state (the more positive voltage)

2. L = LOW state (the less positive voltage)

3. X = state is immaterial

4.

= positive-going transition

5.

= negative-going transition

6. Dn = either HIGH or LOW

7. n = number of clock pulse transitions

January 1995

3

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