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Supply Voltage

7V

Input Voltage

55V

Operating Free Air Temperature Range

DM54S

b

DM74S

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

DM54S257

DM74S257

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

2

b

65

mA

Low Level Output Current

20

20

mA

Free Air Operating Temperature

b

55

125

0

70

C

’S257 Electrical Characteristics

over recommended operating free air temperature (unless otherwise noted)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

Input Clamp Voltage

b

12

V

High Level Output

DM54

24

34

V

Voltage

DM74

24

32

Low Level Output

05

V

Voltage

Input Current

Max

1mA

Input Voltage

High Level Input

Select

100

m

A

Current

Other

50

Low Level Input

Select

b

4

mA

Current

Other

b

2

Off-State Output Current

with High Level Output

50

m

A

Voltage Applied

Off-State Output Current with

Low Level Output

b

50

m

A

Voltage Applied

Short Circuit

DM54

b

40

b

100

mA

Output Current

(Note 2)

DM74

b

40

b

100

Supply Current with Outputs High

44

68

mA

Supply Current with Outputs Low

60

93

mA

Supply Current with Outputs Disabled

64

99

mA

Note 1

Note 2

Not more than one output should be shorted at a time and the duration should not exceed one second

Note 3

2