W83193R-02 Datasheet, PDF (2/18 Pages) Winbond – 83.3 MHZ 3-DIMM CLOCK

Preliminary W83193R-02/-04/-04A
4.0 PIN CONFIGURATION
VDD
1
REF0/CPU3.3#_2.5
2
Vss
3
Xin
4
Xout
5
VDDq3
6
PCICLK_F/*FS1
7
PCICLK0/*FS2
8
Vss
9
PCICLK1
10
PCICLK2
11
PCICLK3
12
PCICLK4
13
VDDq3
14
PCICLK5/PCI_STOP#
15
Vss
16
SDRAM11
17
SDRAM10
18
Vddq3
19
SDRAM 9
20
SDRAM 8
21
Vss
22
SDATA
23
SDCLK
24
48
VDDq2
47
IOAPIC
46
REF1/CPU_STOP#
45
Vss
44
CPUCLK0
43
CPUCLK1
42
VDDq2b
41
CPUCLK2
40
CPUCLK3
39
Vss
38
SDRAM 0
37
SDRAM 1
36
VDDq3
35
SDRAM 2
34
SDRAM 3
33
Vss
32
SDRAM 4
31
SDRAM 5
30
VDDq3
29
SDRAM 6
28
SDRAM 7
27
Vss
26
48MHz/*FS0
25
24MHz/*MODE
3.0 BLOCK DIAGRAM
PLL2
1/2
~
Xin
Xout
XTAL
OSC
FS(0:2)* ³
MODE*
CPU3.3#_2.5*
6
PLL1
Spread
Spectrum
LATCH
~5
POR
STOP
PCI
Clock STOP
Divider
CPU_STOP#
PCI_STOP#
SDATA
SCLK
Control
Logic
Config. Reg.
48 MHz
24 MHz
IOAPIC
REF(0:1)
2
CPUCLK(0:3)
4
SDRAM(0:11)
12
PCICLK(0:5)
6
PCICLK_F
-2-