w83193r-01 Winbond Electronics Corp America, w83193r-01 Datasheet - Page 4

• Manufacturer Part Number: w83193r-01
• Description: 83.mhz 3-dimm Clock
• Manufacturer: Winbond Electronics Corp America

5.2 CPU, SDRAM, PCI Clock Outputs, continued
SDRAM [ 0: 11 ]
PCICLK [ 2:4 ]
PCICLK5/ PCI_STOP#
5.3 I
*SDATA
*SDCLK
5.4 Fixed Frequency Outputs
REF0
REF1 / CPU_STOP#
24MHz / *MODE
48MHz / *FS0
2
C Control Interface
SYMBOL
SYMBOL
SYMBOL
17,18,20,21,
28,29,31,32,
34,35,37,38
11,12,13
PIN
PIN
PIN
15
23
24
46
25
26
2
OUT
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IN
O
- 4 -
Synchronous DRAM DIMs clocks which have the
same frequency as CPU clocks
Low skew (< 250ps) PCI clock outputs.
Internal 250k
If MODE = 1 (default), then this pin is a PCI5 clock
output. If MODE = 0 , then this pin is PCI_STOP #
and used in power management mode for
synchronously stopping the all PCI clocks.
Serial data of I
pull-up resistor.
Serial clock of I
internal pull-up resistor.
Internal 250k
Internal 250k
If MODE =1 (default), then this pin is a REF1
buffered output of the crystal. If MODE = 0 , then this
pin is CPU_STOP# input used in power
management mode for synchronously stopping the
all CPU clocks.
Internal 250k
Latched input for MODE at initial power up. 24MHz
output for super I/O during normal operation.
Internal 250k
Latched input for FS0 at initial power up for H/W
selecting the output frequency of CPU, SDRAM and
PCI clocks. 48MHz output for USB during normal
operation.
2
pull-up.
pull-up buffered output of the crystal.
pull-up.
pull-up.
pull-up.
C 2-wire control interface with internal
2
C 2-wire control interface with
Publication Release Date: May 1998
FUNCTION
FUNCTION
FUNCTION
W83193R-01
PRELIMINARY
Revision 0.20