HD74LS393

Rev.2.00, Feb.18.2005, page 3 of 6

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

7

V

Clear

7

V

Input voltage

A

5.5

V

Power dissipation

400

mW

Storage temperature

Tstg

–65 to +150

°C

Operating temperature

Topr

–20 to +75

°C

Note:

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

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply voltage

4.75

5.00

5.25

V

—

—

–400

µA

Output current

—

—

8

mA

Operating temperature

Topr

–20

—

75

°C

Count frequency

A input

0

—

25

MHz

A input high

or low

20

—

—

Pulse width

Clear high

20

—

—

ns

Clear setup time

25

↓

—

—

ns

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

2.0

—

—

V

Input voltage

—

—

0.8

V

2.7

—

—

V

µA

—

—

0.4

Output voltage

—

—

0.5

V

Clear

—

—

20

Input A

—

—

100

µA

Clear

—

—

–0.4

Input A

—

—

–1.6

mA

Clear

—

—

0.1

Input

current

Input A

—

—

0.2

mA

Short-circuit output current

–20

—

–100

mA

Supply current

—

15

26

mA

Input clamp voltage

—

—

–1.5

V

and all other inputs grounded.