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

Ground Pin

−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 +4.75V

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

(Across Comm Operating Range)

Over Voltage Latchup

V

Recommended Operating

Conditions

Free Air Ambient Temperature

Military

−55˚C to +125˚C

Supply Voltage

Military

+4.5V to +5.5V

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.

DC Electrical Characteristics

Symbol

Parameter

FCT240

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

V

Min

I

V

OL

Output LOW

Voltage

54FCT

0.2

V

Min

I

54FCT

0.5

V

Min

I

I

IH

Input HIGH Current

5

µA

Max

V

I

IL

Input LOW Current

−5

µA

Max

V

I

OS

Output Short-Circuit Current

−60

mA

Max

V

I

CCQ

Power Supply Current

1.5

mA

Max

V

∆I

CC

Power Supply Current

2.0

mA

Max

V

I

CCT

Total Power Supply Current

6.0

mA

Max

V

GND, f

one bit toggling - 50% duty cycle

4.0

mA

Max

V

GND, f

one bit toggling - 50% duty cycle

I

CCD

Dynamic I

CC

0.25

mA/MHz

Max

Outputs Open,OE = GND, One Bit

Toggling, 50% Duty Cycle

AC Electrical Characteristics

Symbol

Parameter

54FCT

Units

Fig. No.

T

V

C

Min

Max

t

PLH

Propagation Delay

2.0

15.0

ns

Figures 2, 5

t

PHL

CP to O

n

2.0

15.0

t

PHL

Propagation Delay

2.0

15.0

ns

Figures 2, 5

MR to O

n

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