4

Integrated

Circuit

Systems, Inc.

ICS954101

0815G—12/02/08

ICS954101 follows Intel CK410 Yellow Cover specification. This clock synthesizer provides a single chip solution for next

generation P4 Intel processors and Intel chipsets. ICS954101 is driven with a 14.318MHz crystal. It generates CPU outputs up

to 400MHz. It also provides a tight ppm accuracy output for Serial ATA and PCI-Express support.

General Description

Block Diagram

Power Groups

VDD

GND

48

51

Xtal, Ref

1,7

2,6

PCICLK outputs

21,28,34

29

SRCCLK outputs

37

38

Master clock, CPU Analog

11

13

DOT, USB, PLL_48

42

45

CPUCLK clocks

Description

Pin Number

I REF

PLL2

Frequency

Dividers

Programmable

Spread

PLL1

Programmable

Frequency

Dividers

STOP

Logic

48MHz, USB

X1

X2

XTAL

SDATA

SCLK

Vtt_PWRGD#/PD

FS_A

FS_B

FS_C

ITP_EN

TEST_MODE

TEST_SEL

Control

Logic

REFOUT

CPUCLKT (2:0)

CPUCLKC (2:0)

SRCCLKT (7:1)

SRCCLKC (7:1)

PCICLK (5:0)

PCICLKF (2:0)

96MHz_DOTT_0

96MHz_DOTC_0