If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Supply Voltage

7V

Input Voltage

7V

Operating Free Air Temperature Range

DM54LS

b

DM74LS

Storage Temperature Range

b

Note

The ‘‘Absolute Maximum Ratings’’ are those values

beyond which the safety of the device cannot be guaran-

teed 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

Recommended Operating Conditions

Symbol

Parameter

DM54LS107A

DM74LS107A

Units

Min

Nom

Max

Min

Nom

Max

Supply Voltage

45

5

55

475

5

525

V

High Level Input Voltage

2

2

V

Low Level Input Voltage

07

08

V

High Level Output Current

b

04

b

04

mA

Low Level Output Current

4

8

mA

Clock Frequency (Note 2)

0

30

0

30

MHz

Clock Frequency (Note 3)

0

25

0

25

MHz

Pulse Width

Clock High

20

20

ns

(Note 2)

Clear Low

25

25

Pulse Width

Clock High

25

25

ns

(Note 3)

Clear Low

30

30

Setup Time (Notes12)

20

v

20

v

ns

Setup Time (Notes13)

25

v

25

v

ns

Hold Time (Notes12)

0

v

0

v

ns

Hold Time (Notes13)

5

v

5

v

ns

Free Air Operating Temperature

b

55

125

0

70

C

Note 1

The symbol (

Note 2

Note 3

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

Input Clamp Voltage

b

15

V

High Level Output

DM54

25

34

V

Voltage

DM74

27

34

Low Level Output

DM54

025

04

Voltage

DM74

035

05

V

DM74

025

04

Input Current

Max

J K

01

Input Voltage

Clear

03

mA

Clock

04

2