74HC138DR2G datasheet(2/9 Pages) ONSEMI

Nome de Peças	74HC138DR2G

Descrição Electrónicos	1?뭥f?? Decoder/ Demultiplexer High?뭁erformance Silicon?묰ate CMOS

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Fabricante Electrônico	ONSEMI [ON Semiconductor]

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74HC138

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2

7

Y6

Y5

Y4

Y3

Y2

Y1

Y0

Y7

9

10

11

12

13

14

15

3

2

1

CS1

CS2

A0

A1

A2

ACTIVE−LOW

OUTPUTS

ADDRESS

INPUTS

CS3

CHIP−

SELECT

INPUTS

5

4

6

PIN 16 = VCC

PIN 8 = GND

Inputs

Outputs

CS1CS2 CS3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7

X

H

X X X

HH

X

H

X

X X X

HH

L

X

X X X

HH

H

L

H

HH

H

L

L H

H

L

HH

H

L

L H L

HH

L

H

HH

H

L

L H H

HH

H

L

HH

H

L

H L

L

HH

L

H

HH

H

L

H L H

HH

H

L

HH

H

L

H H L

HH

L

H

L

H H H

HH

H

L

FUNCTION TABLE

H = high level (steady state); L = low level (steady state); X = don’t care

Figure 1. Pin Assignment

13

14

15

16

9

10

11

12

5

4

3

2

1

8

7

6

A0

CS2

A2

A1

Y7

CS1

CS3

GND

Y3

Y2

Y1

Y0

VCC

Y5

Y4

Y6

Figure 2. Logic Diagram

ORDERING INFORMATION

Device

Package

Shipping†

74HC138DR2G

SOIC−16

(Pb−Free)

2500 / Tape & Reel

74HC138DTR2G

TSSOP−16*

2500 / Tape & Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

*This package is inherently Pb−Free.

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