CD54AC138F3A datasheet(3/17 Pages) TI1

部件名	CD54AC138F3A

功能描述	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

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制造商	TI1 [Texas Instruments]

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CD54AC138, CD74AC138

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SCHS328A – JANUARY 2003 – REVISED FEBRUARY 2003

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC

–0.5 V to 6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current, IIK (VI < 0 V or VI > VCC) (see Note 1)

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current, IOK (VO < 0 V or VO > VCC) (see Note 1)

±50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output current, IO (VO > 0 V or VO < VCC)

±50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous current through VCC or GND

±100 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Note 2): E package

67

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M package

73

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The package thermal impedance is calculated in accordance with JESD 51-7.

recommended operating conditions (see Note 3)

TA = 25°C

–55

°C to

125

°C

–40

°C to

85

°C

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

VCC

Supply voltage

1.5

5.5

1.5

5.5

1.5

5.5

V

VCC = 1.5 V

1.2

VIH

High-level input voltage

VCC = 3 V

2.1

V

VCC = 5.5 V

3.85

VCC = 1.5 V

0.3

VIL

Low-level input voltage

VCC = 3 V

0.9

V

VCC = 5.5 V

1.65

VI

Input voltage

0

VCC

0

VCC

0

VCC

V

VO

Output voltage

0

VCC

0

VCC

0

VCC

V

IOH

High-level output current

VCC = 4.5 V to 5.5 V

–24

mA

IOL

Low-level output current

VCC = 4.5 V to 5.5 V

24

mA

∆t/∆v

Input transition rise or fall rate

VCC = 1.5 V to 3 V

50

ns/V

∆t/∆v

Input transition rise or fall rate

VCC = 3.6 V to 5.5 V

20

ns/V

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

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