W83194BR-323 datasheet(7/18 Pages) WINBOND

Part #	W83194BR-323

Description	STEPLESS CLOCK FOR INTEL BROOKDALE CHIPSET

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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STEPLESS CLOCK FOR INTEL BROOKDALE CHIPSET

- 4 -

W83194BR-323W83194BG-323

CPU, 3V66, and PCI Clock Outputs, continued

PIN NAME

TYPE

DESCRIPTION

42

PD#

IN

Power Down Function. This is power down pin, low active

(PD#).

Internal 120K pull up

PCICLK_F0

OUT 3.3V free running PCI clock output.

6

*FS2

INtp120k Latched input for FS2 at initial power up for H/W selecting

the output frequency, This is internal 120K pull up.

PCICLK_F1

OUT 3.3V free running PCI clock output.

7

*FS3

INtp120k Latched input for FS3 at initial power up for H/W selecting

the output frequency, This is internal 120K pull up.

PCICLK_F2

OUT 3.3V free running PCI clock outputs.

8

&SEL24_48

INtd120k Latched input for 24MHz or 48MHz select pin. This is internal

120K pull down default 24MHz.

PCICLK0

OUT Low skew (< 250ps) PCI clock outputs.

10

*FS4

INtP120k Latched input for FS4 at initial power up for H/W selecting

the output frequency, This is internal 120K pull up.

11, 12, 14,

15, 16, 17

PCICLK [1:6]

OUT Low skew (< 250ps) PCI clock outputs.

5.3 I2C Control Interface

Pin Name

Type

Description

25

SDATA*

I/OD Serial data of I

2C 2-wire control interface with internal pull-

up resistor.

26

SCLK*

IN

Serial clock of I

2C 2-wire control interface with internal pull-

up resistor.

5.4 Fixed Frequency Outputs

PIN NAME

TYPE

DESCRIPTION

REF0

OUT 14.318NHz output.

48

MULTSEL0*

INtp120k Latched input for MULTSEL0 at initial power up, internal

120K pull up

REF1

OUT 14.318NHz output.

1

MULTSEL1*

INtp120k Latched input for MULTSEL1 at initial power up, internal

120K pull up

48MHz

OUT 48MHz clock output for USB.

22

*FS0

INtp120k Latched input for FS0 at initial power up for H/W selecting

the output frequency. This is internal 120K pull up.

24_48MHz

OUT 24(default) or 48MHz clock output, In power on reset period,

it is a hardware-latched pin, and it can be R/W by I2C control

after power on reset period. Select by register 16 bit 7.

23

*FS1

INtp120k Latched input for FS1 at initial power up for H/W selecting

the output frequency. This is internal 120K pull up.

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W83194BR-323 Datasheet(PDF) 7 Page - Winbond

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