74LVQ157TTR(2004) 데이터 시트보기 (PDF) - STMicroelectronics

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74LVQ157TTR
(Rev.:2004)

LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER

STMicroelectronics 

74LVQ157

Figure 2: Input And Output Equivalent Circuit

Table 2: Pin Description

PIN N°

1

2, 5, 11, 14

3, 6, 10, 13

4, 7, 9, 12

15

8

16

SYMBOL

SELECT

1A to 4A

1B to 4B

1Y to 4Y

STROBE

GND

VCC

NAME AND FUNCTION

Common Data Select

Input

Data Inputs From Source

A

Data Inputs From Source

B

Multiplexer Outputs

Strobe Input

Ground (0V)

Positive Supply Voltage

Table 3: Truth Table

INPUTS

STROBE

SELECT

A

H

X

X

L

L

L

L

L

H

L

H

X

L

H

X

X : Don’t Care

Figure 3: Logic Diagram

OUTPUT

B

Y

X

L

X

L

X

H

L

L

H

H

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