Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Decoder 74HCT147 Priority encoder Single supply PDIP 16

1

2

3

4

5

6

7

8

9

2

Functional Diagram

TRUTH TABLE

INPUTS OUTPUTS

I1 I2 I3 I4 I5 I6 I7 I8 I9 Y3 Y2 Y1 Y0

HHHHHHHHHHHHH

XXXXXXXXLLHHL

XXXXXXXLHLHHH

XXXXXXLHHHLLL

XXXXXLHHHHLLH

XXXXLHHHHHLHL

XXXLHHHHHHLHH

XXLHHHHHHHHL L

XLHHHHHHHHHLH

LHHHHHHHHHHHL

H = High Logic Level, L = Low Logic Level, X = Don’t Care

9

7

Y0

11

12

13

2

4

3

1

I7

I6

I5

I4

I3

I2

I1

5

I8

10

I9

GND = 8

V

CC

= 16

6

14

Y1

Y2

Y3

CD54HC147, CD74HC147, CD74HCT147