HCT74 datasheet(2/15 Pages) TI

2 / 15 page

SN54HCT74, SN74HCT74

DUAL DTYPE POSITIVEEDGETRIGGERED FLIPFLOPS

WITH CLEAR AND PRESET

SCLS169E − DECEMBER 1982 − REVISED APRIL 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

FUNCTION TABLE

INPUTS

OUTPUT

PRE

CLR

CLK

H†

† This configuration is nonstable; that is, it does not

persist when PRE or CLR returns to its inactive

(high) level.

logic diagram (positive logic)

PRE

CLK

CLR

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

Supply voltage range, VCC

−0.5 V to 7 V

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

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

±20 mA

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

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

±20 mA

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

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

±25 mA

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

Continuous current through VCC or GND

±50 mA

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

Package thermal impedance,

θJA (see Note 2): D package

°C/W

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

DB package

°C/W

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

N package

°C/W

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

NS package

°C/W

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

PW package

113

°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.

HCT74 bảng dữ liệu(PDF) 2 Page - Texas Instruments

HCT74 bảng dữ liệu(HTML) 2 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

bảng dữ liệu tải về

Link URL