If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Storage Temperature

−65˚C to +150˚C

Ambient Temperature under Bias

−55˚C to +125˚C

Junction Temperature under Bias

Ceramic

−55˚C to +175˚C

V

−0.5V to +7.0V

Input Voltage (Note 2)

−0.5V to +7.0V

Input Current (Note 2)

−30 mA to +5.0 mA

Voltage Applied to Any Output

in the Disabled or

Power-Off State

−0.5V to 5.5V

in the HIGH State

−0.5V to V

CC

Current Applied to Output

in LOW State (Max)

twice the rated I

DC Latchup Source Current

−500 mA

Recommended Operating

Conditions

Free Air Ambient Temperature

Military

−55˚C to +125˚C

Supply Voltage

Military

+4.5V to +5.5V

Minimum Input Edge Rate

(

∆V/∆t)

Data Input

50 mV/ns

Enable Input

20 mV/ns

DC Electrical Characteristics for ’FCT Family Devices

Symbol

Parameter

FCT244

Units

V

CC

Conditions

Min

Max

V

IH

Input HIGH Voltage

2.0

V

Recognized HIGH Signal

V

IL

Input LOW Voltage

0.8

V

Recognized LOW Signal

V

CD

Input Clamp Diode Voltage

−1.2

V

Min

I

V

OH

Output HIGH

Voltage

54FCT

4.3

V

Min

I

54FCT

2.4

I

V

OL

Output LOW

Voltage

54FCT

0.2

V

Min

I

54FCT

0.55

I

I

IH

Input HIGH Current

5

µA

Max

V

I

IL

Input LOW Current

−5

µA

Max

V

I

OZ

Maximum TRI-STATE Current HIGH or

LOW

µA

Max

V

I

OS

Output Short-Circuit Current

-60

mA

Max

V

I

CCQ

Quiescent Power Supply Current

1.5

mA

Max

V

5.5V

∆I

CC

Quiescent Power

Supply Current

2.0

mA

Max

V

I

CCD

Dynamic I

CC

0.4

mA/

MHz

Max

Outputs Open, V

5.3V or V

Toggling, 50% Duty Cycle, OE =

GND, LE = V

CC

I

CCT

Total Power Supply

Current

6.0

mA

Max

Outputs Open, f

V

0.2V, One Bit Toggling, 50%

Duty Cycle, OE = GND, LE =

V

CC

Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions

is not implied.

Note 2: Either voltage limit or current limit is sufficient to protect inputs.

Note 3: All outputs loaded; thresholds on input associated with output under test.

Note 4: Maximum test duration 2.0 ms, one output loaded at a time.

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