M74HC253 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M74HC253

HC253 DUAL 4 CHANNEL MULTIPLEXER 3 STATE OUTPUT HC153 DUAL 4 CHANNEL MULTIPLEXER

STMicroelectronics 

M54/M74HC153 M54/M74HC253

INPUT AND OUTPUT EQUIVALENT CIRCUIT

IEC LOGIC SYMBOLS

HC153

HC253

PIN DESCRIPTION (for HC153)

PIN No

1, 15

14, 2

6, 5, 4, 3

7

9

10, 11, 12,

13

8

16

SYMBOL

1G, 2G

A, B

1C0 to 1C3

1Y

2Y

2C0 to 2C3

GND

VCC

NAME AND FUNCTION

Output Enable Inputs

Common Data Select

Inputs

Data Inputs From

Source 1

Multiplexer Output From

Source 1

Multiplexer Output From

Source 2

Data Inputs From

Source 2

Ground (0V)

Positive Supply Voltage

2/12

PIN DESCRIPTION (for HC253)

PIN No

1, 15

14, 2

6, 5, 4, 3

7, 9

10, 11, 12,

13

8

16

SYMBOL

1G, 2G

A, B

1C0 to 1C3

1Y, 2Y

2C0 to 2C3

GND

VCC

NAME AND FUNCTION

Output Enable Inputs

Common Data Select

Inputs

Data Inputs From

Source 1

3 State Multiplexer

Outputs

Data Inputs From

Source 2

Ground (0V)

Positive Supply Voltage

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