w83195bg-912 Winbond Electronics Corp America, w83195bg-912 Datasheet - Page 10

• Manufacturer Part Number: w83195bg-912
• Description: Clock For Via Chipsets
• Manufacturer: Winbond Electronics Corp America

5.4
5.5
5.6
44,42,38,36,3
43,41,37,35,3
PIN
25
26
PIN
28
27
2,30
1,29
PIN
DRAM Buffer
45
46
I2C Control Interface
Output Control Pins
IREF
RESET#
PD#*
PIN NAME
BUF_IN
FBOUT
DDRT[0:5]
DDRC[0:5]
PIN NAME
SDATA*
PIN NAME
SCLK*
CLOCK GEN. FOR VIA P4/KT SERIES CHIPSET
TYPE
OUT Deciding the reference current for the CPUT/C pairs. The pin was
OD
IN
TYPE
TYPE
I/OD Serial data of I
connected to the precision resistor tied to ground to decide the
appropriate current. The table is show as follows. TABLE 1
Select by register 1 bit 6 L_MODE if L_MODE=1 this pin is System
reset signal when the watchdog is time out. This pin will generate
250mS when the watchdog timer is timeout
Select by register 1 bit 6 L_MODE if L_MODE=0 this pin is Power
Down Function. This is internal 120KΩ pull up.
OUT Feedback clock for chipset. Output voltage depends on VDDD
OUT DDR Clock outputs.
OUT DDR Clock outputs.
IN
MULTSEL
IN
(PIN 11)
1
0
resistor 120K.
Serial clock of I
resistor 120K.
Reference input from chipset. 2.5V input for DDR.
Trace/ Term Z
Board Target
50 Ohms
50 Ohms
- 6 -
2
2
C 2-wire control interface with internal pull-up
C 2-wire control interface with internal pull-up
DESCRIPTION
Iref=VDD/(3*Rr)
Reference R,
Iref=2.32mA
R=475 1%
R=221 1%
DESCRIPTION
DESCRIPTION
Iref=5mA
W83195BG-912
Ioh=6*Iref 0.7V @ 50
Ioh=4*Iref 1.0V @ 50
Current
Output
Ioh @ Z