If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

b

b

b

g

20 mA

g

25 mA

g

50 mA

b

(Note 3)

600 mW

SO Package only

500 mW

260 C

Operating Conditions

Min

Max

Units

6

V

DC Input or Output Voltage

V

MM74HC

b

40

a

85

C

MM54HC

b

55

a

125

C

Input RiseFall Times

1000

ns

500

ns

400

ns

74HC

54HC

Symbol

Parameter

Conditions

Units

Typ

Guaranteed Limits

Minimum High Level Input

20V

15

15

15

V

Voltage

45V

315

315

315

V

60V

42

42

42

V

Maximum Low Level Input

20V

05

05

05

V

Voltage

45V

135

135

135

V

60V

18

18

18

V

Minimum High Level Output

Voltage

20V

20

19

19

19

V

45V

45

44

44

44

V

60V

60

59

59

59

V

45V

42

398

384

37

V

60V

57

548

534

52

V

Maximum Low Level Output

Voltage

20V

0

01

01

01

V

45V

0

01

01

01

V

60V

0

01

01

01

V

45V

02

026

033

04

V

60V

02

026

033

04

V

Maximum Input Current

60V

g

01

g

10

g

10

m

A

Maximum Quiescent Supply

60V

20

20

40

m

A

Current

Note 1

Maximum Ratings are those values beyond which damage to the device may occur

Note 2

Unless otherwise specified all voltages are referenced to ground

Note 3

Power Dissipation temperature derating

Note 4

2