CD74HC138-Q1

HIGH-SPEED CMOS LOGIC

3- TO 8-LINE INVERTING DECODER/DEMULTIPLEXER

SCLS580A − APRIL 2004 − REVISED APRIL 2008

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

Supply voltage range, VCC (see Note 1)

−0.5 V to 7 V

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

Input clamp current, IIK (VI < −0.5 V or VI > VCC + 0.5 V)

±20 mA

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

Output clamp current, IOK (VO < −0.5 V or VO > VCC + 0.5 V)

±20 mA

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

Source or sink current per output pin, IO (VO > −0.5 V or VO < VCC + 0.5 V)

±25 mA

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

Continuous current through VCC or GND

±50 mA

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

Package thermal impedance,

θJA (see Note 2)

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. All voltages referenced to GND unless otherwise specified.

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

recommended operating conditions (see Note 3)

MIN

MAX

UNIT

VCC

Supply voltage

2

6

V

VCC = 2 V

1.5

VIH

High-level input voltage

VCC = 4.5 V

3.15

V

VIH

High level input voltage

VCC = 6 V

4.2

V

VCC = 2 V

0.5

VIL

Low-level input voltage

VCC = 4.5 V

1.35

V

VIL

Low level input voltage

VCC = 6 V

1.8

V

VI

Input voltage

0

VCC

V

VO

Output voltage

0

VCC

V

VCC = 2 V

0

1000

tt

Input transition (rise and fall) time

VCC = 4.5 V

0

500

ns

tt

Input transition (rise and fall) time

VCC = 6 V

0

400

ns

TA

Operating free-air temperature

−40

125

°C

NOTES:

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.