w83194br-138 Winbond Electronics Corp America, w83194br-138 Datasheet - Page 4

• Manufacturer Part Number: w83194br-138
• Description: 200mhz Clock For Solano Chipset
• Manufacturer: Winbond Electronics Corp America

4.3 I
*SDATA
*SDCLK
4.4 Fixed Frequency Outputs
REF0 / *SEL24_48#
24_48MHz/FS2&
48MHz_0/ FS3*
48MHz_1/ FS4*
4.5 Power Pins
VddC,VddA
Vdd48
Vdd3
VddP
VddR
VddS
Vss
2
C Control Interface
SYMBOL
SYMBOL
SYMBOL
5,6,14,21,29,34,42,
PIN
PIN
24
23
28
27
26
1
46,48
11,18
30,38
PIN
25
10
43
2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IN
- 4 -
Power supply for CPU & IOAPIC, 2.5V or 3.3V.
Power supply for 48MHz output,3.3V.
Power supply for 3V_66 output, 3.3V.
Power supply for PCICLK, 3.3V.
Power supply for REF0, 3.3V.
Power supply for SDRAM_F,SDRAM[0:11], nominal
3.3V.
Circuit Ground.
Serial data of I
pull-up resistor.
Serial clock of I
internal pull-up resistor.
14.318MHz reference clock. This REF output is the
stronger buffer for ISA bus loads.
Latched input for SEL24_48 at initial power up for
H/W selecting the output frequency of 24_48MHz
(Default=1, 24MHz).
24MHz or 48MHz output clock. Default is 24MHz.
Latched input for FS2 at initial power up for H/W
selecting the output frequency of CPU, SDRAM and
PCI clocks(Default=0).
48MHz / Latched input for FS3 at initial power up
for H/W selecting the output frequency of CPU,
SDRAM and PCI clocks (Default=1).
48MHz / Latched input for FS3 at initial power up
for H/W selecting the output frequency of CPU,
SDRAM and PCI clocks (Default=1).
2
C 2-wire control interface with internal
2
C 2-wire control interface with
Publication Release Date: May 2000
FUNCTION
FUNCTION
FUNCTION
W83194BR-138
PRELIMINARY
Revision 0.37