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G2B

G2A

G1

C

B

A

Y7

Y6

Y5

Y4

Y3

Y2

Y1

Y0

Data

Outputs

Select

Inputs

Enable

Inputs

1

2

3

6

4

5

15

14

13

12

11

10

9

7

Pin numbers shown are for the D, DB, DGV, J, NS, PW, RGY, and W packages.

SN54LVC138A, SN74LVC138A

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SCAS291T – MARCH 1993 – REVISED JULY 2005

LOGIC DIAGRAM (POSITIVE LOGIC)

3