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

W83194BR-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
IN
OUT
DESCRIPTION
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
42, 39, 41,
38
45, 44
29, 26, 25
7
8
12
PIN NAME
CPUT [0:1]
CPUC [0:1]
CPUT_ITP,
CPUC_ITP
AGP0: 2
PCI_F0
FS2&
PCI_F1
FS4&
PCI0
MODE&
TYPE
OUT
DESCRIPTION
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.
OUT 3.3V PCI free running clock output.
INtd120k
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.
INtd120k
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.
Latched input for pin 19, 20 at initial power up selecting the
INtd120k 0=PCI5, PCI6 clock output, 1=PCI_STOP and CPU _STOP
control pin. This is internal 120KΩ pull down.
Publication Release Date: April 13, 2005
-3-
Revision 1.1