w83194br-655 Winbond Electronics Corp America, w83194br-655 Datasheet - Page 8

• Manufacturer Part Number: w83194br-655
• Description: Clock For Sis Chipsets Winbond Clock Generator
• Manufacturer: Winbond Electronics Corp America

5. PIN DESCRIPTION
5.1
5.2
40,39,44,43
17,20,21,22 PCI [1:4]
BUFFER TYPE SYMBOL
47,47
31,30
9,10
PIN
PIN
14
15
16
12
6
7
Crystal I/O
CPU, AGP, ZCLK and PCI Clock Outputs
IN
IN
CPUT0: 1
CPUC0: 1
SRCT, SRCC
AGP_0: 1
ZCLK0: 1
PCI_F0
FS3
PCI_F1
FS4
PCI0
PCI_STOP#*
PCI5
FS2*
OUT
XIN
XOUT
OD
IN
tp120k
td120k
&
#
*
PIN NAME
PIN NAME
&
&
IN
IN
IN
IN
Input
Output
Open Drain
Active Low
Latched input at power up, internal 120kΩ pull up.
Latched input at power up, internal 120kΩ pull down.
Internal 120kΩ pull-up
Internal 120 kΩ pull-down
TYPE
TYPE
OUT Current mode differential clock outputs for CPU & Chipset
OUT 3.3V PCI free running clock output.
OUT 3.3V PCI clock output.
OUT 3.3V PCI clock output.
OUT Current mode differential clock outputs, For SRC
OUT 3.3V AGP clock outputs.
OUT 3.3V ZCLK clock outputs, For MuTIOL bus.
OUT 3.3V PCI free running clock output.
OUT Low skew (< 250ps) 3.3V PCI clock outputs.
OUT
td120k
td120k
tp120k
tp120k
IN
Latched input for FS3 at initial power up for H/W selecting
the output frequency. This is internal 120K pull down.
Latched input for FS4 at initial power up for H/W selecting
the output frequency, This is internal 120K pull down.
Active low, Stop all PCI clock output besides the free running
clocks, Select by power up latched MODE#=1,This is internal
120K pull up.
Latched input for FS2 at initial power up for H/W selecting
the output frequency, This is internal 120K pull up.
Crystal input with internal loading capacitors (18pF) and
feedback resistors.
Crystal output at 14.318MHz nominally with internal loading
capacitors (18pF).
W83194BR-655/W83194BG-655
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DESCRIPTION
DESCRIPTION
DESCRIPTION