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W83195BG-341

WINBOND CLOCK GENERATOR FOR VIA P4/KT SERIES CHIPSET

Winbond 

W83195BR-341/W83195BG-341

CLOCK GEN. FOR VIA P4/KT SERIES CHIPSET

5. PIN DESCRIPTION

BUFFER TYPE

SYMBOL

FUNCTION DESCRIPTION

IN

Input

INtd120k

INtp120k

OUT

Latch input pin and internal 120KΩ pull down

Latch input pin and internal 120KΩ pull up

Output

OD

Open Drain

I/O

Bi-directional Pin

I/OD

Bi-directional Pin, Open Drain

#

Active Low

*

Internal 120kΩ pull-up

&

Internal 120kΩ pull-down

5.1 Crystal I/O

PIN

PIN NAME

3

XIN

4

XOUT

TYPE

DESCRIPTION

IN Crystal input with internal loading capacitors (18pF) and

feedback resistors.

OUT Crystal output at 14.318MHz nominally with internal loading

capacitors (18pF).

5.2 CPU, AGP, PCI Clock Outputs

PIN

PIN NAME

TYPE

DESCRIPTION

53,52

CPUT/CPUOD_T OUT Current Mode differential clock outputs for P4 CPU or Open

CPUC/CPUOD_C

Drain Mode differential clock outputs for K7 CPU, selected by

hardware trapping power on 7 pin SELP4_K7* selecting.

SELP4_K7=1 Current Mode, SELP4_K7=0 Open Drain

Mode.

49,48 CPUCS_C,

CPUCS_T

OUT 2.5V differential clock outputs for Chipset.

7

AGP1

OUT 3.3V 66MHz clock output

SELP4_K7*

INtp120k Power up Latched input to selecting pin 53,52 and 56 output

type, SELP4_K7=1 the 53,52 is P4 Mode and pin 56 is

VTT_PWRGD#, SELP4_K7=0 the 53,52 is K7 Mode and pin

56 is REF1.This is internal 120KΩ pull up.

6

AGP_0

OUT 3.3V 66MHz clock output.

Publication Release Date: March, 2006

-3-

Revision 1.1

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