If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Storage Temperature

b

Ambient Temperature under Bias

b

Junction Temperature under Bias

b

Plastic

b

Ground Pin

b

Input Voltage (Note 2)

b

Input Current (Note 2)

b

Voltage Applied to Output

Standard Output

b

TRI-STATE Output

b

Current Applied to Output

in LOW State (Max)

ESD Last Passing Voltage (Min)’F399

4000V

Note 1

Absolute maximum ratings are values beyond which the device may

be damaged or have its useful life impaired Functional operation under

these conditions is not implied

Note 2

Either voltage limit or current limit is sufficient to protect inputs

Recommended Operating

Conditions

Free Air Ambient Temperature

Military

b

Commercial

Supply Voltage

Military

a

Commercial

a

DC Electrical Characteristics

Symbol

Parameter

54F74F

Units

Conditions

Min

Typ

Max

Input HIGH Voltage

20

V

Recognized as a HIGH Signal

Input LOW Voltage

08

V

Recognized as a LOW Signal

Input Clamp Diode Voltage

b

12

V

Min

Output HIGH

25

Voltage

25

V

Min

27

Output LOW

05

V

Min

Voltage

05

Input HIGH Current

54F

200

m

A

Max

74F

50

Input HIGH Current

54F

100

m

A

Max

Breakdown Test

74F

70

Output HIGH

54F

250

m

A

Max

Leakage Current

74F

50

Input Leakage

74F

475

V

00

Test

All Other Pins Grounded

Output Leakage

74F

375

m

A

00

Circuit Current

All Other Pins Grounded

Input LOW Current

b

06

mA

Max

Output Short-Circuit Current

b

60

b

150

mA

Max

Power Supply Current (’F398)

25

38

mA

Max

Power Supply Current (’F398)

25

38

mA

Max

Power Supply Current (’F399)

22

34

mA

Max

Power Supply Current (’F399)

22

34

mA

Max

4