If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

b

b

b

g

20 mA

g

g

35 mA (others)

g

70 mA

b

(Note 3)

600 mW

SO Package only

500 mW

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

V

ns

V

ns

V

ns

74HC

54HC

Symbol

Parameter

Conditions

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

V

V

V

V

V

V

V

mA

V

V

mA

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

V

V

V

mA

V

V

Maximum Input Current

V

g

g

g

m

A

Maximum TRISTATE Output

V

g

g

g

m

A

GND

Leakage Currrent

G

Maximum Quiescent Supply

V

m

A

Current

m

A

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

plastic ‘‘N’’ package

12 mW C from 65 Cto85 C ceramic ‘‘J’’ package

12 mW C from 100 Cto125 C

Note 4

2