If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Supply Voltage

8V

Input Voltage

55V

Operating Free Air Temperature Range

DM54L

b

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

DM54L74

Units

Min

Nom

Max

Supply Voltage

45

5

55

V

High Level Input Voltage

2

V

Low Level Input Voltage

07

V

High Level Output Current

b

02

mA

Low Level Output Current

2

mA

Clock Frequency (Note 2)

0

6

MHz

Pulse Width (Note 2)

Clock High

75

Clock Low

75

ns

Preset Low

75

Clear Low

75

Input Setup Time (Notes12)

50

u

ns

Input Hold Time (Notes12)

15

u

ns

Free Air Operating Temperature

b

55

125

C

Note 1

The symbol (

Note 2

2