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 1)

−0.5V to +7.0V

Input Current (Note 1)

−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

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 those values beyond which damage

to the device may occur. The databook specifications should be met, without

exception, to ensure that the system design is reliable over its power supply,

temperature, and output/input loading variables. National does not recom-

DC Characteristics for ’FCT Family Devices

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

OZH

High Impedance Output Current

10

µA

Max

V

I

OZL

High Impedance Output Current

-10

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

4.8

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

No Load

0.25

mA/MHz

Max

Outputs Open, OE = GND, One

Bit Toggling, 50% Duty Cycle

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