TC74AC139P データシートの表示（PDF） - Toshiba

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TC74AC139P

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

Toshiba 

IEC Logic Symbol

TC74AC139P/F/FN/FT

1A (2)

1B (3)

1G (1)

2A (14)

2B (13)

2G (15)

X/Y

1

2

EN

0 (4) 1Y0

1 (5) 1Y1

2 (6) 1Y2

3 (7) 1Y3

(12) 2Y0

(11) 2Y1

(10) 2Y2

(9)

2Y3

1A (2)

1B (3)

1G (1)

DMUX 0 (4)

0

1 G0

3

1 (5)

2 (6)

3 (7)

1Y0

1Y1

1Y2

1Y3

2A (14)

2B (13)

2G (15)

(12) 2Y0

(11) 2Y1

(10) 2Y2

(9)

2Y3

Truth Table

Inputs

Enable

Select

G

B

A

H

X

X

L

L

L

L

L

H

L

H

L

L

H

H

X: Don’t care

Outputs

Y0 Y1 Y2 Y3

H

H

H

H

L

H

H

H

H

L

H

H

H

H

L

H

H

H

H

L

Selected

Output

None

Y0

Y1

Y2

Y3

System Diagram

2/14

A

3/13

B

1/15

G

4/12

Y0

5/11

Y1

6/10

Y2

7/9

Y3

2

2007-10-01

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