Nexperia

74LVC139

Dual 2-to-4 line decoder/demultiplexer

4. Functional diagram

mna779

1A0

1A1

2A0

2A1

2E

1E

1Y0

1Y1

1Y2

1Y3

2Y0

2Y1

2Y2

2Y3

1

15

9

10

11

12

7

6

5

4

13

14

3

2

Fig. 1. Logic symbol

mna781

4

3

2

1

0

1

DX

5

6

7

0

1

2

3

G03

12

13

14

1

0

15

DX

(a)

(b)

11

10

9

0

1

2

3

G03

4

3

2

2

EN

EN

1

1

X/Y

5

6

7

0

1

2

3

12

13

14

2

1

15

X/Y

11

10

9

0

1

2

3

(a) demultiplexer

(b) decoder

Fig. 2. IEC logic symbol

mna780

1Y0

1Y1

1Y2

1Y3

7

6

5

4

1A0

1A1

1E

1

3

2

2Y0

2Y1

2Y2

2Y3

9

10

11

12

2A0

2A1

2E

15

13

14

DECODER

DECODER

Fig. 3. Functional diagram

74LVC139

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 24 September 2021

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