W164 Datasheet, PDF (2/11 Pages) Cypress Semiconductor – Spread Spectrum Desktop/Notebook System Frequency Generator

Block Diagram
X1
XTAL
X2
OSC
PLL Ref Freq
100/66#_SEL
PLL 1
÷2/÷3/÷4
SDATA
SCLOCK
I²C
LOGIC
PLL2
W164
VDDQ3
REF2X/SEL48#
GND
VDDQ3
IOAPIC
VDDQ2
CPU0
CPU1
GND
Pin Configuration
X1 1
X2 2
GND 3
PCI_F 4
PCI1 5
PCI2 6
PCI3 7
PCI4 8
VDDQ3 9
PCI5 10
PCI6 11
VDDQ3 12
48MHz 13
24/48MHz 14
28 GND
27 REF2X/SEL48#
26 VDDQ3
25 VDDQ2
24 IOAPIC
23 VDDQ2
22 CPU0
21 CPU1
20 VDDQ3
19 GND
18 SDATA
17 SCLOCK
16 SEL100/66#
15 GND
VDDQ3
PCI_F
PCI1
PCI2
PCI3
PCI4
PCI5
PCI6
GND
VDDQ3
48MHz
24/48MHz
GND
Rev 1.0, November 28, 2006
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