HD74LS166A

Rev.4.00, May 10, 2006, page 3 of 7

Block Diagram

Serial Input

Clear

Shift/Load

A

B

C

D

E

F

G

H

Clock

Clock Inhibit

R CK S

R CK S

R CK S

R CK S

R CK S

R CK S

R CK S

R CK S

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

7

V

Input voltage

7

V

Power dissipation

400

mW

Storage temperature

Tstg

–65 to +150

°C

Note:

Voltage value, unless otherwise noted, are with respect to network ground terminal.