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Supply Voltage

7V

Input Voltage

55V

Operating Free Air Temperature Range

DM54 and 54

b

DM74

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

DM5474

DM7474

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

08

08

V

High Level Output Current

b

04

b

04

mA

Low Level Output Current

16

16

mA

Clock Frequency (Note 2)

0

15

0

15

MHz

Pulse Width

Clock High

30

30

(Note 2)

Clock Low

37

37

ns

Clear Low

30

30

Preset Low

30

30

Input Setup Time (Notes12)

20

u

20

u

ns

Input Hold Time (Notes12)

5

u

5

u

ns

Free Air Operating Temperature

b

55

125

0

70

C

Note 1

The symbol (

Note 2

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 3)

Input Clamp Voltage

b

15

V

High Level Output

24

34

V

Voltage

Low Level Output

02

04

V

Voltage

Input Current

Max

1mA

Input Voltage

High Level Input

D

40

Current

Clock

80

m

A

Clear

120

Preset

40

Low Level Input

D

b

16

Current

Clock

b

32

mA

(Note 6)

Clear

b

32

Preset

b

16

Short Circuit

DM54

b

20

b

55

mA

Output Current

(Note 4)

DM74

b

18

b

55

Supply Current

17

30

mA

Note 3

Note 4

Not more than one output should be shorted at a time

Note 5

Note 6

Clear is tested with preset high and preset is tested with clear high

2