w83193r-04 Winbond Electronics Corp America, w83193r-04 Datasheet - Page 3

• Manufacturer Part Number: w83193r-04
• Description: 83.3 Mhz 3-dimm Clock
• Manufacturer: Winbond Electronics Corp America

5.0 PIN DESCRIPTION
IN - Input
OUT - Output
I/O - Bi-directional Pin
# - Active Low
* - Internal 250k
5.1 Crystal I/O
5.2 CPU, SDRAM, PCI Clock Outputs
Xin
Xout
CPUCLK [ 0:3 ]
IOAPIC
SDRAM [ 0:11]
PCICLK_F/ *FS1
PCICLK 0 / *FS2
PCICLK [ 1:4 ]
PCICLK5/ PCI_STOP#
SYMBOL
SYMBOL
pull-up
17, 18, 20, 21,
28, 29, 31, 32,
40, 41, 43, 44
34, 35, 37, 38
10, 11, 12, 13
PIN
PIN
47
15
4
5
7
8
Preliminary W83193R-02/-04/-04A
OUT Crystal output at 14.318 MHz nominally.
OUT Low skew (< 250 pS) clock outputs for host
OUT High drive buffered output of the crystal, and is
OUT Low skew (< 250 pS) PCI clock outputs.
I/O
I/O
I/O
I/O
I/O
IN
O
- 3 -
Crystal input with internal loading capacitors and
feedback resistors.
frequencies such as CPU, Chipset and Cache.
V
powered by V
SDRAM clock outputs which have the same
frequency as CPU clocks.
Latched input for FS1 at initial power up for H/W
selecting the output frequency of CPU, SDRAM and
PCI clocks.
Free running PCI clock during normal operation.
Latched input for FS2 at initial power up for H/W
selecting the output frequency of CPU, SDRAM and
PCI clocks.
PCI clock during normal operation.
Internal 250 K
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.
DD
q2 is the supply voltage for these outputs.
DD
q2.
pull-up.
Publication Release Date: April 1999
FUNCTION
FUNCTION
Revision A1