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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

V

DC Input or Output Voltage

V

MMHC

b

a

C

MMHC

b

a

C

Input Rise or Fall Times

(Clear Input)

V

ns

V

ns

V

ns

74HC

54HC

Symbol

Parameter

Conditions

Units

Typ

Guaranteed Limits

Minimum High Level Input

V

V

Voltage

V

V

V

V

Maximum Low Level Input

V

V

Voltage

V

V

V

V

Minimum High Level

Output Voltage

m

A

V

V

V

V

V

V

V

mA

V

V

mA

V

V

Maximum Low Level

Output Voltage

V

V

V

V

V

V

V

V

V

mA

V

V

Maximum Input Current

V

g

g

g

m

A

Pins

Maximum Input Current

V

g

g

g

m

A

all other pins

Maximum Quiescent Supply

V

m

A

Current standby

Maximum Active Supply

V

m

A

Current per

V

mA

monostable

V

mA

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