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Supply Voltage

7V

Input Voltage

7V

Operating Free Air Temperature Range

DM54LS and 54LS

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

DM54LS161A

DM74LS161A

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 1)

0

25

0

25

MHz

Clock Frequency (Note 2)

0

20

0

20

MHz

Pulse Width

Clock

20

6

20

6

ns

(Note 1)

Clear

20

9

20

9

Pulse Width

Clock

25

25

ns

(Note 2)

Clear

25

25

Setup Time

Data

20

8

20

8

(Note 1)

Enable P

25

17

25

17

ns

Load

25

15

25

15

Setup Time

Data

20

20

(Note 2)

Enable P

30

30

ns

Load

30

30

Hold Time

Data

0

b

30

b

3

ns

(Note 1)

Others

0

b

30

b

3

Hold Time

Data

5

5

ns

(Note 2)

Others

5

5

Clear Release Time (Note 1)

20

20

ns

Clear Release Time (Note 2)

25

25

ns

Free Air Operating Temperature

b

55

125

0

70

C

Note 1

Note 2

2