CD74HC4538-Q1 datasheet(3/16 Pages) TI1

No. de pieza	CD74HC4538-Q1

Descripción Electrónicos	HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

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Fabricante Electrónico	TI1 [Texas Instruments]

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CD74HC4538-Q1

HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE

PRECISION MONOSTABLE MULTIVIBRATOR

SCLS595A − NOVEMBER 2004 − REVISED APRIL 2008

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

FUNCTIONAL TERMINAL CONNECTIONS

FUNCTION

VCC TO

TERMINAL NUMBER

GND TO

TERMINAL NUMBER

INPUT PULSE TO

TERMINAL NUMBER

OTHER CONNECTIONS

FUNCTION

MONO1

MONO2

MONO1

MONO2

MONO1

MONO2

MONO1

MONO2

Leading-edge

trigger/retriggerable

3, 5

11, 13

4

12

Leading-edge

trigger/nonretriggerable

3

13

4

12

5−7

11−9

Trailing-edge

trigger/retriggerable

3

13

4

12

5

11

Trailing-edge

trigger/nonretriggerable

3

13

5

11

4−6

12−10

NOTES:

1. A retriggerable one-shot multivibrator has an output pulse width that is extended one full time period (T) after application of the last

trigger pulse.

2. A nontriggerable one-shot multivibrator has a time period (T) referenced from the application of the first trigger pulse.

Input Pulse Train

Retriggerable Mode

Pulse Width (A Mode)

Nonretriggerable Mode

Pulse Width (A Mode)

T

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

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

Switch 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): M package

73

°C/W

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

PW package

108

°C/W

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

Maximum junction temperature, TJ

150

°C

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

Lead temperature (during soldering):

At distance 1/16

± 1/32 inch (1,59 ± 0,79 mm) from case for 10 s max

300

°C

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

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 are referenced to GND, unless otherwise specified.

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

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