Nexperia

74LVC139

Dual 2-to-4 line decoder/demultiplexer

5. Pinning information

5.1. Pinning

74LVC139

1E

VCC

1A0

2E

1A1

2A0

1Y0

2A1

1Y1

2Y0

1Y2

2Y1

1Y3

2Y2

GND

2Y3

001aad029

1

2

3

4

5

6

7

8

10

9

12

11

14

13

16

15

Fig. 4. Pin configuration SOT109-1 (SO16) and

SOT403-1 (TSSOP16)

001aad031

74LVC139

1Y3

2Y2

GND(1)

1Y2

2Y1

1Y1

2Y0

1Y0

2A1

1A1

2A0

1A0

2E

Transparent top view

7

10

6

11

5

12

4

13

3

14

2

15

terminal 1

index area

(1) This is not a ground pin. There is no electrical or

mechanical requirement to solder the pad. In case

soldered, the solder land should remain floating or

connected to GND.

Fig. 5. Pin configuration SOT763-1 (DHVQFN14)

5.2. Pin description

Table 2. Pin description

Name

Pin

Description

1E

1

enable input (active LOW)

2E

15

enable input (active LOW)

1A0, 1A1

2, 3

address input

2A0, 2A1

14, 13

address input

1Y0, 1Y1, 1Y2, 1Y3

4, 5, 6, 7

output

2Y0, 2Y1, 2Y2, 2Y3

12, 11, 10, 9

output

GND

8

ground (0 V)

VCC

16

positive supply voltage

6. Functional description

Table 3. Function table

H = HIGH voltage level; L = LOW voltage level; X = don’t care

Input

Output

nE

nA0

nA1

nY0

nY1

nY2

nY3

H

X

X

H

H

H

H

L

L

L

L

H

H

H

L

H

L

H

L

H

H

L

L

H

H

H

L

H

L

H

H

H

H

H

L

74LVC139

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 24 September 2021

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