If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (V

−0.5V to +7.0V

DC Input Diode Current (I

V

−20 mA

V

+20 mA

DC Input Voltage (V

−0.5V to V

DC Output Diode Current (I

V

−20 mA

V

+20 mA

DC Output Voltage (V

−0.5V to V

DC Output Source

or Sink Current (I

DC V

per Output Pin (I

Storage Temperature (T

−65˚C to +150˚C

Junction Temperature (T

CDIP

175˚C

Recommended Operating

Conditions

Supply Voltage (V

’AC

2.0V to 6.0V

’ACT

4.5V to 5.5V

Input Voltage (V

0VtoV

CC

Output Voltage (V

0VtoV

CC

Operating Temperature (T

54AC/ACT

−55˚C to +125˚C

Minimum Input Edge Rate (

∆V/∆t)

’AC Devices

V

V

125 mV/ns

Minimum Input Edge Rate (

∆V/∆t)

’ACT Devices

V

V

125 mV/ns

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 ’AC Family Devices

54AC

Symbol

Parameter

V

CC

T

Units

Conditions

(V)

Guaranteed Limits

V

IH

Minimum High

3.0

2.1

V

Level Input

4.5

3.15

V

or V

Voltage

5.5

3.85

V

IL

Maximum Low

3.0

0.9

V

Level Input

4.5

1.35

V

or V

Voltage

5.5

1.65

V

OH

Minimum High

3.0

2.9

I

Level Output

4.5

4.4

V

Voltage

5.5

5.4

(Note 2)

V

3.0

2.4

−12 mA

4.5

3.7

V

I

OH

−24 mA

5.5

4.7

−24 mA

V

OL

Maximum Low

3.0

0.1

I

Level Output

4.5

0.1

V

Voltage

5.5

0.1

(Note 2)

V

3.0

0.50

12 mA

4.5

0.50

V

I

OL

24 mA

5.5

0.50

24 mA

I

IN

Maximum Input

5.5

µA

V

Leakage Current

I

OZ

Maximum

V

TRI-STATE

5.5

µA

V

Current

V

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