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Supply Voltage

7V

Input Voltage

7V

Operating Free Air Temperature Range

DM54

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

DM54LS299

DM74LS299

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

Q0 Q7

b

04

b

04

mA

IO0 – IO7

b

26

b

26

mA

Low Level Output Current

Q0 Q7

4

8

mA

IO0 – IO7

12

24

mA

Free Air Operating Temperature

b

55

125

0

70

C

Setup Time HIGH or LOW

24

24

ns

S0 or S1 to CP

24

24

Hold Time HIGH or LOW

5

0

ns

S0 or S1 to CP

5

0

Setup Time HIGH or LOW

15

10

ns

15

10

Hold Time HIGH or LOW

5

0

ns

5

0

CP Pulse Width HIGH or LOW

15

15

ns

15

15

MR Pulse Width LOW

15

15

ns

Recovery Time

10

10

ns

MR to CP

Electrical Characteristics

Over recommended operating free air temperature range (unless otherwise noted)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

Input Clamp Voltage

b

15

V

High Level Output

DM54

25

Voltage

Q0 Q7

DM74

27

34

V

IO0 – IO7

24

Low Level Output

DM54

04

Voltage

DM74

035

05

V

DM74

025

04

Input Current

Max

Inputs

01

mA

Input Voltage

Sn

02

mA

2