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2

Unit Loading/Fan Out

Truth Table

H

= HIGH Voltage Level

L

= LOW Voltage Level

Logic Diagram

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

Pin Names

Description

U.L.

Word A Inputs

1.0/1.0

20

µA/−0.6 mA

Word B Inputs

1.0/1.0

20

µA/−0.6 mA

Expansion or Enable Input (Active LOW)

1.0/1.0

20

µA/−0.6 mA

Identity Output (Active LOW)

50/33.3

−1 mA/20 mA

Inputs

Output

A, B

LA

= B (Note 1)

L

LA

≠ BH

HA

= B (Note 1)

H

HA

≠ BH