Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Voltage at Any Pin, Referenced to

Gnd

-0.3V to +10V

Storage Temperature

-65˚C to +150˚C

Power Dissipation at 25˚C

350mW

Power Dissipation at 70˚C

300mW

Junction Temperature

+150˚C

Lead Temperature

(Soldering,

10s)

300˚C

Recommended Operating

Conditions

V

DD

3V to 10V

Operating Temperature

−40˚C to 85˚C

fied.

Parameter

Conditions

Min

Typ

Max

Units

Supply Voltage, V

DD

310

V

Average Supply Current, I

DD

All Outputs Open, Clock=Gnd,

V

10

µA

V

40

µA

Input Logical ’0’ Voltage, V

IL

V

0.4

V

V

0.8

V

V

0.8

V

Input Logical ’1’ Voltage, V

IH

V

2.0

V

V

2.0

V

V

8.0

V

Segment Sink Current, I

OL

V

-20

-40

µA

Segment Source Current, I

OH

V

20

40

µA

Backplane Out Sink Current,

I

OL

V

-320

-500

µA

Backplane Out Source

Current, I

OH

V

320

500

µA

Segment Output Offset

Voltage

Segment Load = 250pF (Note 2)

+/-50

mV

Backplane Output Offset

Voltage

Backplane Load = 8750pF (Note 2)

+/-50

mV

Backplane Out Frequency

R

75

Hz

Clock Input Frequency, f

CLOCK

V

500

kHz

V

750

kHz

V

1.0

MHz

Clock Input Duty Cycle

40

60

%

Data Input Set-Up Time, t

DS

300

ns

Data Input Hold Time, t

DH

300

ns

DataEnable Set-up Time, t

DES

100

ns

Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices

should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.

Note 2: This parameter is guaranteed (but not production tested) over the operating temperature range and the operating supply voltage range. Not to be used in

Q.A. testing.

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