Supply Voltage

7V

Input Voltage

7V

Operating Free Air Temperature Range

DM54LS and 54LS

−55˚C to +125˚C

DM74LS

0˚C to +70˚C

Storage Temperature Range

−65˚C to +150˚C

Recommended Operating Conditions

Symbol

Parameter

DM54LS283

DM74LS283

Units

Min

Nom

Max

Min

Nom

Max

V

CC

Supply Voltage

4.5

5

5.5

4.75

5

5.25

V

V

IH

High Level Input Voltage

2

2

V

V

IL

Low Level Input Voltage

0.7

0.8

V

I

OH

High Level Output Current

−0.4

−0.4

mA

I

OL

Low Level Output Current

4

8

mA

T

A

Free Air Operating Temperature

−55

125

0

70

˚C

Note 1:

The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these

limits. The parametric values defined in the “Electrical Characteristics” table are not guaranteed at the absolute maximum ratings. The “Recommended Operating

Conditions” table will define the conditions for actual device operation.

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 2)

V

I

Input Clamp Voltage

V

−1.5

V

V

OH

High Level Output

V

Max

DM54

2.5

3.4

V

Voltage

V

DM74

2.7

3.4

V

OL

Low Level Output

V

DM54

0.25

0.4

Voltage

V

DM74

0.35

0.5

V

I

Min

DM74

0.25

0.4

I

I

V

A, B

0.2

mA

Input Voltage

V

C0

0.1

I

IH

High Level Input

V

A, B

40

µA

Current

V

C0

20

I

IL

Low Level Input

V

A, B

−0.8

mA

Current

V

C0

−0.4

I

OS

Short Circuit

V

DM54

−20

−100

mA

Output Current

DM74

−20

−100

I

CC1

Supply Current

V

19

34

mA

I

CC2

Supply Current

V

22

39

mA

Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.

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