CD74AC238 datasheet(3/8 Pages) TI

3 / 8 page

CD74AC238

3-LINE TO 8-LINE DECODER/DEMULTIPLEXER

SCHS331 – FEBRUARY 2003

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

±200 mA

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

Package thermal impedance,

θJA (see Note 2)

°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

°C

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

VCC

Supply voltage

1.5

5.5

1.5

5.5

1.5

5.5

VCC = 1.5 V

1.2

VIH

High-level input voltage

VCC = 3 V

2.1

VCC = 5.5 V

3.85

VCC = 1.5 V

0.3

VIL

Low-level input voltage

VCC = 3 V

0.9

VCC = 5.5 V

1.65

Input voltage

VCC

Output voltage

VCC

IOH

High-level output current

VCC = 4.5 V to 5.5 V

–24

IOL

Low-level output current

VCC = 4.5 V to 5.5 V

∆t/∆v

Input transition rise or fall rate

VCC = 1.5 V to 3 V

ns/V

∆t/∆v

Input transition rise or fall rate

VCC = 3.6 V to 5.5 V

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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