54AC646SD datasheet(5/10 Pages) NSC

部品番号	54AC646SD

部品情報	Octal Transceiver/Register with TRI-STATE Outputs

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Absolute Maximum Ratings (Note 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (V

CC)

−0.5V to +7.0V

DC Input Diode Current (I

IK)

V

I = −0.5V

−20 mA

V

I = VCC + 0.5V

+20 mA

DC Input Voltage (V

I)

−0.5V to V

CC + 0.5V

DC Output Diode Current (I

OK)

V

O = −0.5V

−20 mA

V

O = VCC + 0.5V

+20 mA

DC Output Voltage (V

O)

−0.5V to V

CC + 0.5V

DC Output Source

or Sink Current (I

O)

±50 mA

DC V

CC or Ground Current

per Output Pin (I

CC or IGND)

±50 mA

Storage Temperature (T

STG)

−65˚C to +150˚C

Junction Temperature (T

J)

CDIP

175˚C

Recommended Operating

Conditions

Supply Voltage (V

CC)

’AC

2.0V to 6.0V

Input Voltage (V

I)

0VtoV

CC

Output Voltage (V

O)

0VtoV

CC

Operating Temperature (T

A)

54AC

−55˚C to +125˚C

Minimum Input Edge Rate (

∆V/∆t)

’AC Devices

V

IN from 30% to 70% of VCC

V

CC @ 3.3V, 4.5V, 5.5V

125 mV/ns

Note 2: 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-

mend operation of FACT® circuits outside databook specifications.

DC Characteristics for ’AC Family Devices

54AC

Symbol

Parameter

V

CC

T

A =

Units

Conditions

(V)

−55˚C to +125˚C

Guaranteed

Limits

V

IH

Minimum High Level

3.0

2.1

V

OUT = 0.1V

Input Voltage

4.5

3.15

V

or V

CC − 0.1V

5.5

3.85

V

IL

Maximum Low Level

3.0

0.9

V

OUT = 0.1V

Input Voltage

4.5

1.35

V

or V

CC − 0.1V

5.5

1.65

V

OH

Minimum High Level

3.0

2.9

I

OUT = −50 µA

Output Voltage

4.5

4.4

V

5.5

5.4

(Note 3)

V

IN = VIL or VIH

3.0

2.4

I

OH = −12 mA

4.5

3.7

V

I

OH = −24 mA

5.5

4.7

I

OH = −24 mA

V

OL

Maximum Low Level

3.0

0.1

I

OUT = 50 µA

Output Voltage

4.5

0.1

V

5.5

0.1

(Note 3)

V

IN = VIL or VIH

3.0

0.50

I

OH =12mA

4.5

0.50

V

I

OL =24mA

5.5

0.50

I

OH =24mA

I

IN

Maximum Input

5.5

±1.0

µA

V

I = VCC, GND

Leakage Current

I

OLD

Minimum Dynamic

Output Current

(Note 4)

5.5

50

mA

V

OLD = 1.65V Max

I

OHD

5.5

−50

mA

V

OHD = 3.85V Min

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