HD74HC77

Rev.2.00, Oct 06, 2005 page 2 of 6

Pin Arrangement

1

2

3

4

5

6

7

1D

2D

Enable3-4

3D

4D

NC

1Q

2Q

Enable1-2

GND

NC

3Q

4Q

14

13

12

11

10

9

8

(Top view)

Q

Q

Q

Q

DG

DG

DG

DG

Logic Diagram (1/4)

Data

Q

Enable

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.