Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Demultiplexer, decoder Decoder/demultiplexer Single supply PDIP 16

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CD54AC138, CD74AC138

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SCHS328A – JANUARY 2003 – REVISED FEBRUARY 2003

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

FUNCTION TABLE

ENABLE INPUTS SELECT INPUTS OUTPUTS

G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7

X H X X X X H H H H H H H H

X XHXXXHHHHHHHH

L XXXXXHHHHHHHH

H LLLLLLHHHHHHH

H LLLLHHLHHHHHH

H LLLHLHHLHHHHH

H LLLHHHHHLHHHH

H LLHLLHHHHLHHH

H LLHLHHHHHHLHH

H LLHHLHHHHHHLH

H L L H H H H H H H H H H L

logic diagram (positive logic)

G1

G

2B

G

2A

C

B

A

Y7

Y6

Y5

Y4

Y3

Y2

Y1

Y0

Data

Outputs

Select

Inputs

Enable

Inputs

1

2

3

4

5

6

15

14

13

12

11

10

9

7