W83194BR-703 WINBOND [Winbond], W83194BR-703 Datasheet - Page 8

• Manufacturer Part Number: W83194BR-703
• Description: STEPLESS CLOCK FOR SIS 741 CHIPSET
• Manufacturer: WINBOND [Winbond]

5. PIN DESCRIPTION
5.1
5.2
16,17,20,21
,22,23
BUFFER TYPE SYMBOL
38,37
43,42
31,30
47,46
9,10
PIN
PIN
40
14
15
6
7
Crystal I/O
CPU, AGP, ZCLK and PCI, IOAPIC Clock Outputs
IN
IN
CPUT0
CPUC0
CPUT1
SRCT, SRCC
AGP_0: 1
ZCLK0: 1
PCI_F0
FS2*
PCI_F1
FS3*
PCI [0:5]
IOAPIC [0:1]
OUT
XIN
XOUT
OD
IN
tp120k
td120k
&
#
*
PIN NAME
PIN NAME
IN
IN
Input
Latched input at power up, internal 120kΩ pull up.
Latched input at power up, internal 120kΩ pull down.
Output
Open Drain
Active Low
Internal 120kΩ pull-up
Internal 120 kΩ pull-down
TYPE
TYPE
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 3.3V PCI free running clock output.
OUT Low skew (< 250ps) PCI clock outputs.
OUT 2.5V IOAPIC outputs.
OUT
OD
OD
tp120k
tp120k
IN
3.3V open drain differential clock outputs for AMD K7 CPU
3.3V open drain singled –ended synchronize with CPUT0,
For chipset host bus
Latched input for FS2 at initial power up for H/W selecting
the output frequency. This is internal 120K pull up.
Latched input for FS3 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-703/W83194BG-703
-4-
DESCRIPTION
DESCRIPTION
DESCRIPTION