IDTTM

56-pin CK505 for Embedded Intel Systems

1614B—01/21/10

ICS9EPRS525

4

56-pin CK505 for Embedded Systems

ICS9EPRS525 is compliant Intel CK505 Yellow Cover specification. This clock synthesizer provides a single chip solution for Intel

desktop chipsets. ICS9EPRS525 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(7:3)

PLL2

Non-SS

PLL3

SS

7

SRC8/ITP

PCI(5:0)

SRC2/SATA

SRC1/SE(2:1)

SE Outputs

SATA

DOT96MHz

PCI33MHz

SRC

SRC

SRC_MAIN

PCI33MHz

Differential Output

SRC0/DOT96

48MHz

48MHz

CPU

FSLA

CKPWRGD/PD#

PCI_STOP#

CPU_STOP#

CR#_(A:F)

SRC5_EN

ITP_EN

FSLC/TESTSEL

FSLB/TESTMODE

Control

Logic

X1

X2

VDD

GND

41, 47

44

16

15

12

11

911

53

50

28

Pin Number

Description

Master Clock, Analog

CPUCLK

26, 31, 37

23, 34

SRCCLK

20

19

USB 48

Xtal, REF

PCICLK

PLL3/SE

DOT 96Mhz