CDCV304 datasheet(2/8 Pages) TI

2 / 8 page

CDCV304

140-MHz PCI-X CLOCK BUFFER

SCAS643B – SEPTEMBER 2000 REVISED JULY 2002

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

1Y[0–3]

3, 5, 7, 8

Buffered output clocks

CLKIN

Input reference frequency

GND

Power

Ground

Outputs enable control

VDD3.3V

Power

3.3-V supply

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

Supply voltage range, VDD

–0.5 V to 4.3 V

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

Input voltage range, VI (see Notes 1 and 2)

–0.5 V to VDD + 0.5 V

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

Output voltage range, VO (see Notes 1 and 2)

–0.5 V to VDD + 0.5 V

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

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

±50 mA

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

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

±50 mA

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

Continuous total output current, IO (VO = 0 to VDD)

±50 mA

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

Package thermal impedance,

θJA (see Note 3): PW package

230.5

°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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2. This value is limited to 4.6 V maximum.

3. The package thermal impedance is calculated in accordance with JESD 51.

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, VDD

3.3

3.6

High-level input voltage, VIH

0.7

×VDD

Low-level input voltage, VIL

0.3

×VDD

Input voltage, VI

VDD

High-level output current, IOH

–24

Low-level output current, IOL

Operating free-air temperature, TA

–40

°C

timing requirements over recommended ranges of supply voltage and operating free-air

temperature

MIN

NOM

MAX

UNIT

fclk

Clock frequency

140

MHz

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