w83195bg-912 Winbond Electronics Corp America, w83195bg-912 Datasheet - Page 8

• Manufacturer Part Number: w83195bg-912
• Description: Clock For Via Chipsets
• Manufacturer: Winbond Electronics Corp America

5. PIN DESCRIPTION
5.1
5.2
53,52
49,48
BUFFER TYPE SYMBOL
PIN
PIN
3
4
7
6
Crystal I/O
CPU, AGP, PCI Clock Outputs
CPUT/CPUOD_T
CPUC/CPUOD_
C
CPUCS_C,
CPUCS_T
AGP1
SELP4_K7*
AGP_0
IN
IN
OUT
I/OD
OD
I/O
IN
td120k
tp120k
#
*
&
PIN NAME
PIN NAME
XOUT
XIN
CLOCK GEN. FOR VIA P4/KT SERIES CHIPSET
TYPE
IN
OUT Crystal output at 14.318MHz nominally with internal loading
TYPE
OUT Current Mode differential clock outputs for P4 CPU or Open
OUT 2.5V differential clock outputs for Chipset.
OUT 3.3V 66MHz clock output
OUT 3.3V 66MHz clock output.
IN
Input
Latch input pin and internal 120KΩ pull down
Latch input pin and internal 120KΩ pull up
Output
Open Drain
Bi-directional Pin
Bi-directional Pin, Open Drain
Active Low
Internal 120kΩ pull-up
Internal 120kΩ pull-down
tp120k
Crystal input with internal loading capacitors (18pF) and
feedback resistors.
capacitors (18pF).
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.
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.
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FUNCTION DESCRIPTION
DESCRIPTION
DESCRIPTION
W83195BG-912