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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

(Soldering 10 seconds)

260 C

Operating Conditions

Min

Max

Units

45

55

V

DC Input or Output Voltage

0

V

MM74HCT

b

40

a

85

C

MM54HCT

b

55

a

125

C

Input Rise or Fall Times

500

ns

74HCT

54HCT

Symbol

Parameter

Conditions

Typ

Guaranteed Limits

Minimum High Level

V

Input Voltage

Maximum Low Level

V

Input Voltage

Output Voltage

m

A

V

V

mA

V

V

mA

V

V

Output Voltage

m

A

V

mA

V

V

mA

V

V

Maximum Input

V

g

g

g

m

A

Current

m

A

Supply Current

m

A

V or

V Note

mA

Note 1

Absolute 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