4

Integrated

Circuit

Systems, Inc.

ICS954309

1044A—02/20/07

The ICS954309 is a CK410M clock synthesizer with additional SRC clock support. The ICS954309 provides a single-chip

solution for mobile systems built with Intel P4-M processors and Intel mobile chipsets. The ICS954309 is driven with a

14.318MHz crystal and generates CPU outputs up to 400MHz.

General Description

Block Diagram

Power Groups

VDD

GND

43

46

Xtal, REF

54, 48

59, 55

PCICLK outputs

29, 17, 10

30, 11

SRCCLK outputs

60

1

DOT_96, USB_48

36

37

CPUCLK outputs, Analog

Description

Pin Number

PLL1

PLL2

PCICLK(0:3), PCICLK_F0

USB_48.00

XTAL

OSC

X1

X2

REF

CPUCLK_ITP/SRCCLK7

SRCCLK(0:3,5,6,8,9,10)

CPUCLK(0:1)

CONTROL

LOGIC

IREF

DOT96MHz

OUTPUT

DIVIDERS

OUTPUT

DIVIDERS

PWR

MGMT

PWR

MGMT

PWR

MGMT

PWR

MGMT

PWR

MGMT

PWR

MGMT

PWR

MGMT

ITP EN

FS_A

FS_B/TEST_MODE

FS_C/TEST_SEL

VTT_PwrGd#/PD

PCI_STOP#

CPU_STOP#

OE(0,1,3,6,A,B)#

SMBDAT

SMBCLK