W83195BR-101 Ver la hoja de datos (PDF) - Winbond
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W83195BR-101 Datasheet PDF : 27 Pages
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W83195BR/G-101
STEPLESS FOR INTEL 915/925 CHIPSETS
5. PIN DESCRIPTION
BUFFER TYPE SYMBOL
IN
INtp120k
INtd120k
OUT
I/OD
#
*
&
DESCRIPTION
Input
Latched input at power up, internal 120kΩ pull up.
Latched input at power up, internal 120kΩ pull down.
Output
Bi-directional Pin, Open Drain.
Active Low
Internal 120kΩ pull-up
Internal 120kΩ pull-down
5.1 Crystal I/O
PIN
PIN NAME
50
XIN
49
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, SRC, PCIF, and PCI Clock Outputs
PIN
PIN NAME
TYPE
DESCRIPTION
44,43,41,40
CPUT [0:1]
CPUC [0:1]
19,20,22,23,2
4,25,31,30,33
,32,36,35
SRCT[1:3,5:7]
SRCC[1:3,5:7]
8,9,10 PCI_F[0:2]
OUT
Low skew (< 125ps) 0.7V current mode differential clock
outputs for host frequencies of CPU
OUT
Low skew (<125ps)0.7V current mode differential clock
outputs for PCI-E
OUT 3.3V free running PCI clock output.
PCI0
54
&FS4
55,56,3,4,5 PCI [1:5]
OUT 3.3V PCI clock output.
Latched input for FS4 at initial power up for H/W
INtd120k
selecting the output frequency. Latched voltage level
refers to Vil_FS and Vih_FS voltage level. This is
internal 120K pull down.
OUT Low skew (< 500ps) 3.3V PCI clock outputs
-4-
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