MC74VHC139DTEL データシートの表示（PDF） - ON Semiconductor

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MC74VHC139DTEL

Dual 2-to-4 Decoder/ Demultiplexer

ON Semiconductor 

MC74VHC139

PIN ASSIGNMENT

Ea 1

A0a 2

A1a 3

Y0a 4

Y1a 5

Y2a 6

Y3a 7

GND 8

16

VCC

15

Eb

14

A0b

13

A1b

12

Y0b

11

Y1b

10

Y2b

9

Y3b

FUNCTION TABLE

Inputs

Outputs

E A1 A0 Y0 Y1 Y2 Y3

H

X X H HH H

L

L L L HH H

L

L H H LH H

L

H L H HL H

L

H H H HH L

LOGIC DIAGRAM

ADDRESS

INPUTS

A0a 2

A1a 3

4 Y0a

5 Y1a

6 Y2a

7 Y3a

ACTIVE-LOW

OUTPUTS

Ea 1

ADDRESS

INPUTS

A0b 14

A1b 13

Eb 15

12 Y0b

11 Y1b

10 Y2b

9 Y3b

ACTIVE-LOW

OUTPUTS

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