74ACT11478 datasheet(2/5 Pages) TI1

2 / 5 page

74ACT11478

METASTABLERESISTAND OCTAL DTYPE DUALRANK FLIPFLOP

WITH 3-STATE OUTPUTS

SCAS131 − APRIL 1990 − REVISED APRIL 1993

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

logic symbol†

logic diagram (positive logic)

CLK

† This symbol is in accordance with ANSI/IEEE Std 91-1984

and IEC Publication 617-12.

To Seven Other Flip-Flops

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

Supply voltage range, VCC

− 0.5 V to 7 V

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

Input voltage range, VI (see Note 1)

− 0.5 V to VCC + 0.5 V

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

Output voltage range, VO (see Note 1)

− 0.5 V to VCC + 0.5 V

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

Input clamp current, IIK (VI < 0 or VI > VCC)

± 20 mA

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

Output clamp current, IOK (VO < 0 or VO > VCC)

± 50 mA

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

Continuous output current, IO (VO = 0 to VCC)

± 50 mA

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

Continuous current through VCC or GND

± 200 mA

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

Storage temperature range

− 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.

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

recommended operating conditions

MIN

MAX

UNIT

VCC

Supply voltage

4.5

5.5

VIH

High-level input voltage

VIL

Low-level input voltage

0.8

Input voltage

VCC

Output voltage

VCC

IOH

High-level output current

−24

IOL

Low-level output current

Dt/Dv

Input transition rise or fall rate

ns /V

Operating free-air temperature

−40

°C

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