w83194br-603 Winbond Electronics Corp America, w83194br-603 Datasheet - Page 7

• Manufacturer Part Number: w83194br-603
• Description: Winbond Clock Generator For Intel P4 Springdale Series Chipset
• Manufacturer: Winbond Electronics Corp America

5. PIN DESCRIPTION
5.1
5.2
42,39,41,38 CPUT [0:1]
BUFFER TYPE SYMBOL
45,44
36,35
29,26
PIN
PIN
30
25
7
4
5
Crystal I/O
CPU, SRC, 3V66 and PCI Clock Outputs
CLOCK GEN. FOR INTEL P4 SPRINGDALE/PRESCOTT SERIES CHIPSET
IN
IN
CPUC [0:1]
CPUT_ITP
CPUC_ITP
SRCT, SRCC
3V66_0
RESET#
3V66_1:2
3V66_3
VCH_CLK
PCI_F0
FS2
OUT
I/OD
XIN
XOUT
OD
IN
tp120k
td120k
&
#
*
PIN NAME
PIN NAME
&
IN
Input
Latched input at power up, internal 120kΩ pull up.
Latched input at power up, internal 120kΩ pull down.
Output
Open Drain
Bi-directional Pin, Open Drain.
Active Low
Internal 120kΩ pull-up
Internal 120 kΩ pull-down
TYPE
TYPE
OUT Low skew (< 250ps) differential clock outputs for host
OUT Differential clock outputs for host frequencies of CPU
OUT Differential clock outputs 100MHz/200MHz Select by for
OUT 3.3V 66MHz clock output (Default). Selected by MODE
OUT 3.3V 66MHz clock outputs.
OUT 3.3V 66MHz clock output (Default), Selected by Register
OUT 3.3V 48MHz clock output, Selected by Register byte 3 bit
OUT 3.3V PCI free running clock output.
OUT Crystal output at 14.318MHz nominally with internal loading
OD
td120k
IN
frequencies of CPU
System reset signal when the watchdog is time out. This
Latched input for FS2 at initial power up for H/W selecting
the output frequency. This is internal 120K pull down.
feedback resistors.
capacitors (18pF).
Crystal input with internal loading capacitors (18pF) and
SRC
latch input =0.
pin will generate 250ms low phase when the watchdog
timer is timeout. Selected by MODE latch input =1.
byte 3 bit 4 =0.
4 =1.
W83194BR-603/W83194BG-603
- 3 -
DESCRIPTION
DESCRIPTION
DESCRIPTION
Publication Release Date: March, 2006
Revision 0.7