IEC LOGIC SYMBOLS

HC4353

HC4352

HC4351

TRUTH TABLE

CONTROL INPUTS

”ON” CHANNEL (LE = H) **

EN1

EN2

C *

B

A

HC4351

HC4352

HC4353

L

H

L

L

L

0

0X, 0Y

0X, 0Y, 0Z

L

H

L

L

H

1

1X, 1Y

1X, 0Y, 0Z

L

H

L

H

L

2

2X, 2Y

0X, 1Y, 0Z

L

H

L

H

H

3

3X, 3Y

1X, 1Y, 0Z

L

H

H

L

L

4

- -

0X, 0Y, 1Z

L

H

H

L

H

5

- -

1X, 0Y, 1Z

L

H

H

H

L

6

- -

0X, 1Y, 1Z

L

H

H

H

H

7

- -

1X, 1Y, 1Z

H

X

X

X

X

NONE

NONE

NONE

X

L

X

X

X

NONE

NONE

NONE

X: DON’T CARE *: HC4351/3 only

** When latch Enable is low, the Channel Selection is latched and the Channel Address Latch does not change state.

M54/M74HC4351/4352/4353

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