MC74AC352 Motorola, MC74AC352 Datasheet - Page 2

• Manufacturer Part Number: MC74AC352
• Description: DUAL 4-INPUT MULTIPLEXER
• Manufacturer: Motorola

FUNCTIONAL DESCRIPTION
It selects two bits of data from up to four sources under the
control of the common Select inputs (S 0 , S 1 ). The two 4-input
multiplexer circuits have individual active LOW Enables (E a ,
E b ) which can be used to strobe the outputs independently.
When the Enables (E a , E b ) are HIGH, the corresponding
outputs (Z a , Z b ) are forced HIGH.
Z a = E a (I 0a S 1 S 0 +I 1a S 1 S 0 +
Z b = E b (I 0b S 1 S 0 +I 1b S 1 S 0 +
The MC74AC352/74ACT352 is a dual 4-input multiplexer.
The logic equations for the outputs are shown below:
I 2a S 1 S 0 +I 3a S 1 S 0 )
I 2b S 1 S 0 +I 3b S 1 S 0 )
E a I 0a
I 1a
Z a
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
I 2a
MC74AC352 MC74ACT352
I 3a
LOGIC DIAGRAM
FACT DATA
S 0
5-2
from a group of registers to a common output bus. The
particular register from which the date came would be
determined by the state of the Select inputs. A less obvious
application is as a function generator. The MC74AC352/
74ACT352 can generate two functions of three variables. This
is useful for implementing highly irregular random logic.
S 0
The MC74AC352/74ACT352 can be used to move data
I 0b
I 1b
Z b
I 2b
I 3b E b