w83194br-323 Winbond Electronics Corp America, w83194br-323 Datasheet - Page 7

• Manufacturer Part Number: w83194br-323
• Description: Clock For Intel Chipsets
• Manufacturer: Winbond Electronics Corp America

CPU, 3V66, and PCI Clock Outputs, continued
5.3
5.4
11, 12, 14,
15, 16, 17
PIN
PIN
PIN
25
26
48
22
23
42
10
1
6
7
8
I
Fixed Frequency Outputs
2
C Control Interface
STEPLESS CLOCK FOR INTEL BROOKDALE CHIPSET
PD#
PCICLK_F0
*FS2
PCICLK_F1
*FS3
PCICLK_F2
&SEL24_48
PCICLK0
*FS4
PCICLK [1:6]
SDATA*
SCLK*
REF0
MULTSEL0*
REF1
MULTSEL1*
48MHz
*FS0
24_48MHz
*FS1
PIN NAME
PIN NAME
Pin Name
IN
IN
IN
IN
IN
IN
IN
IN
TYPE
TYPE
OUT 14.318NHz output.
OUT 14.318NHz output.
OUT 48MHz clock output for USB.
OUT 24(default) or 48MHz clock output, In power on reset period,
OUT 3.3V free running PCI clock outputs.
OUT Low skew (< 250ps) PCI clock outputs.
OUT 3.3V free running PCI clock output.
OUT 3.3V free running PCI clock output.
OUT Low skew (< 250ps) PCI clock outputs.
Type
I/OD
tp120k
tp120k
tp120k
tp120k
IN
tp120k
tp120k
td120k
tP120k
IN
Latched input for MULTSEL0 at initial power up, internal
120K pull up
Latched input for MULTSEL1 at initial power up, internal
120K pull up
Latched input for FS0 at initial power up for H/W selecting
the output frequency. This is internal 120K pull up.
it is a hardware-latched pin, and it can be R/W by I2C control
after power on reset period. Select by register 16 bit 7.
Latched input for FS1 at initial power up for H/W selecting
the output frequency. This is internal 120K pull up.
Power Down Function. This is power down pin, low active
(PD#).
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.
Latched input for FS3 at initial power up for H/W selecting
the output frequency, This is internal 120K pull up.
Latched input for 24MHz or 48MHz select pin. This is internal
120K pull down default 24MHz.
Latched input for FS4 at initial power up for H/W selecting
the output frequency, This is internal 120K pull up.
Serial data of I
up resistor.
up resistor.
Serial clock of I
W83194BR-323/W83194BG-323
- 4 -
2
2
C 2-wire control interface with internal pull-
C 2-wire control interface with internal pull-
DESCRIPTION
DESCRIPTION
Description