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Supply Voltage

7V

Input Voltage

55V

Operating Free Air Temperature Range

54LS

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

54LS168

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

04

mA

Low Level Output Current

4

mA

Free Air Operating Temperature

b

55

125

C

Setup Time HIGH or LOW

15

ns

15

Hold Time HIGH or LOW

5

ns

5

Setup Time HIGH or LOW

20

ns

PE to CP

20

Hold Time HIGH or LOW

0

ns

PE to CP

0

Setup Time HIGH or LOW

25

ns

UD to CP

25

Hold Time HIGH or LOW

0

ns

UD to CP

0

CP Pulse Width HIGH or LOW

20

ns

20

2