ICS954201 Datasheet, PDF (4/15 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Mobile P4™ Systems

Integrated
Circuit
Systems, Inc.
ICS954201
General Description
ICS954201 is a CK410M Yellow Cover clock synthesizer. ICS954201 provides a single-chip solution for mobile systems built
with Intel P4-M processors and Intel mobile chipsets. ICS954201 is driven with a 14.318MHz crystal and generates CPU
outputs up to 400MHz. It provides the tight ppm accuracy required by Serial ATA and PCI-Express.
Block Diagram
X1
X2
XTAL
OSC.
FIXED PLL
DIVIDER
PROG.
SPREAD
MAIN PLL
PROG.
DIVIDERS
PCI/SRC_STOP#
CPU_STOP#
FS(C:A)
ITP_EN
TEST_MODE
TEST_SEL
VTT_PWRGD#/PD
SDATA
SCLK
CONTROL
LOGIC
REF
USB_48MHz
DOT_96MHz
PCICLK(5:2)
PCICLK_F(1:0)
SRCCLK(6:0)
CPUCLK2_ITP/SRCCLK7
CPUCLK(1:0)
IREF
Power Groups
Pin Number
VDD
GND
48
51
1,7
2,6
21,28,34
29
37
38
11
13
42
45
0819G—12/06/04
Description
Xtal, Ref
PCICLK outputs
SRCCLK outputs
Master clock, CPU Analog
DOT, USB, PLL_48
CPUCLK clocks
4