6

Integrated

Circuit

Systems, Inc.

ICS9LPR501

1118E—08/08/07

ICS9LPR501 follows Intel CK505 Yellow Cover specification. This clock synthesizer provides a single chip solution for next

generation P4 Intel processors and Intel chipsets. ICS9LPR501 is driven with a 14.318MHz crystal. It also provides a tight ppm

accuracy output for Serial ATA and PCI-Express support.

General Description

Block Diagram

Power Groups

REF

CPU(1:0)

CPU PLL1

SS

OSC

REF

SRC(11-9,7:3)

PLL2

Non-SS

PLL3

SS

7

SRC8/ITP

PCI

SRC2/SATA

SRC1/SE(2:1)

SE Outputs

SATA

DOT96MHz

PCI33MHz

SRC

SRC

SR C _M A IN

PCI33MHz

Differential Output

SRC0/DOT96

48MHz

48MHz

CPU

FSLA

CKPWRGD/PD#

PCI_STOP#

CPU_STOP#

CR#_(A:H)

SRC5_EN

ITP_EN

FSLC/TESTSEL

FSLB/TESTMODE

Control

Logic

X1

X2

VDD

GND

49

52

CPUCLK

Low power outputs

55

52

26, 36, 45

23, 29, 42

Low power outputs

39

23, 29, 42

PLL 1

20

19

Low power outputs

16

19

PLL 3

12

11

DOT 96Mhz

Low power outputs

911

61

58

28

Pin Number

Description

PLL3/SE

Master Clock, Analog

USB 48

Xtal, REF

PCICLK

SRCCLK