HD74HC139 查看數據表（PDF） - Renesas Electronics

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产品描述 (功能)

比赛名单

HD74HC139

Dual 2-to-4-line Decoders/Demultiplexers

Renesas Electronics 

HD74HC139

Pin Arrangement

Enable 1G 1

Select

1A 2

1B 3

1Y0 4

Data

Outputs

1Y1 5

1Y2 6

1Y3 7

GND 8

Logic Diagram (1/2)

G

A

G

B

A

Y0

B

Y1

Y0

Y2

Y1

Y3

Y2

Y3

(Top view)

16 VCC

15 2G Enable

14 2A

13 2B

Select

12 2Y0 Outputs

11 2Y1

Data

Outputs

10 2Y2

9 2Y3

Enable

Y0

Y1

A

Y2

Y3

B

2

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