HD74HC109

Rev.2.00, Oct 11, 2005 page 2 of 7

Pin Arrangement

1

J

K

Q

Q

CK

CLR

PR

(Top view)

1CLR

2

1J

3

1

K

4

1CK

5

1PR

6

1Q

7

1

Q

8

GND

16

2CLR

15

2J

14

2

K

13

2CK

12

2PR

11

2Q

10

2

Q

9

K

J

Q

Q

CK

PR

CLR

Logic Diagram (1/2)

C

Q

Q

C

C

K

J

CLR

PR

C

C

CK

C

C

C

C

C

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage range

–0.5 to 7.0

V

Input / Output voltage

Vin, Vout

V

Input / Output diode current

±20

mA

Output current

±25

mA

±50

mA

Power dissipation

500

mW

Storage temperature

Tstg

–65 to +150

°C

Note:

The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of

which may be realized at the same time.