w83195bg-101 Winbond Electronics Corp America, w83195bg-101 Datasheet - Page 8

• Manufacturer Part Number: w83195bg-101
• Description: Winbond Clock Generator For Intel 915/925 Chipsets
• Manufacturer: Winbond Electronics Corp America

5. PIN DESCRIPTION
5.1
5.2
19,20,22,23,2
4,25,31,30,33
44,43,41,40
55,56,3,4,5 PCI [1:5]
,32,36,35
BUFFER TYPE SYMBOL
8,9,10
PIN
PIN
54
50
49
Crystal I/O
CPU, SRC, PCIF, and PCI Clock Outputs
IN
IN
OUT
I/OD
IN
tp120k
td120k
#
*
&
SRCT[1:3,5:7]
SRCC[1:3,5:7]
PCI_F[0:2]
PCI0
&
XIN
XOUT
FS4
CPUC [0:1]
CPUT [0:1]
PIN NAME
PIN NAME
STEPLESS FOR INTEL 915/925 CHIPSETS
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
IN
TYPE
TYPE
OUT
OUT
OUT
OUT
OUT
OUT
td120k
IN
Low skew (< 125ps) 0.7V current mode differential clock
outputs for host frequencies of CPU
Low skew (<125ps)0.7V current mode differential clock
outputs for PCI-E
3.3V free running PCI clock output.
3.3V PCI clock output.
Latched input for FS4 at initial power up for H/W
selecting the output frequency. Latched voltage level
refers to Vil_FS and Vih_FS voltage level. This is
internal 120K pull down.
Low skew (< 500ps) 3.3V PCI clock outputs
Crystal input with internal loading capacitors (18pF) and
feedback resistors.
Crystal output at 14.318MHz nominally with internal
loading capacitors (18pF).
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DESCRIPTION
DESCRIPTION
DESCRIPTION
W83195BR/G-101