W83194BR-903_06 Datasheet, PDF (7/26 Pages) Winbond – STEPLESS VIA PT/PM MAIN CLOCK GENERATOR

W83194BR-903/W83194BG-903
5. PIN DESCRIPTION
BUFFER TYPE SYMBOL
IN
IN_tp120k
IN_td120k
OUT
OD
I/OD
#
*
&
DESCRIPTION
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
5.1 Crystal I/O
PIN
PIN NAME
4
XIN
5
XOUT
TYPE
DESCRIPTION
IN
OUT
Crystal input with internal loading capacitors (18pF) and
feedback resistors.
Crystal output at 14.318MHz nominally with internal loading
capacitors (18pF).
5.2 CPU, AGP, and PCI Clock Outputs
PIN
PIN NAME
TYPE
DESCRIPTION
42,39,41,38 CPUT [0:1]
CPUC [0:1]
45,44 CPUT_ITP,
CPUC_ITP
29,26,25 AGP0: 2
OUT Low skew (< 250ps) differential clock outputs for host
frequencies of CPU
OUT Differential clock outputs for host frequencies of CPU
OUT 3.3V AGP clock outputs.
7
PCI_F0
FS2^&
8
PCI_F1
FS4^&
12 PCI0
MODE^&
OUT 3.3V PCI free running clock output.
IN_td120k Latched input for FS2 at initial power up for H/W selecting
the output frequency. This is internal 120K pull down.
OUT 3.3V PCI free running clock output.
IN_td120k Latched input for FS4 at initial power up for H/W selecting
the output frequency, This is internal 120K pull down.
OUT 3.3V PCI clock output.
IN_td120k Latched input for pin 19,20 at initial power up selecting the
0=PCI5, PCI6 clock output, 1=PCI_STOP and CPU _STOP
control pin. This is internal 120KΩ pull down.
Publication Release Date: May 2006
-3-
Revision 1.0