W83195BG-118 데이터 시트보기 (PDF) - Winbond

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W83195BG-118

Clock Generator

Winbond 

W83195BR-118/W83195BG-118

STEPLESS FOR INTEL 915/945 CHIPSETS

Fixed Frequency Outputs, continued.

PIN

PIN NAME

12 48MHz

26,27 SRCT

SRCC

14,15 DOTT/C

TYPE

OUT

OUT

DESCRIPTION

48MHz clock output for USB.

0.7V current mode 100MHz differential clock outputs for S-

ATA

OUT 0.7V current mode 96MHz differential clock outputs for

DOT

5.4 I2C Control Interface

PIN

PIN NAME

44 *SDATA

45 *SCLK

TYPE

I/OD

IN

DESCRIPTION

Serial data of I2C 2-wire control interface with internal pull-

up resistor.

Serial clock of I2C 2-wire control interface with internal pull-

up resistor.

5.5 Power Management Pins

PIN

PIN NAME TYPE

DESCRIPTION

37 IREF

OUT

Deciding the reference current for the differential pairs. The

pin was connected to the precision resistor tied to ground to

decide the appropriate current; 475 ohm is the standard

value.

52 RESET#

OD System reset signal when the watchdog is time out. This pin

will generate 250ms low phase when the watchdog timer is

timeout.

16 VTT_PWRGD# IN Power good is a low active input signal used to determine

when FS [2:0] are valid to be sample.

PD

INtd120k Power Down Function. This is power down pin, high active

(PD).

Internal 120K pull down

Publication Release Date: May 2006

-5-

Revision 0.81

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