Integrated

Circuit

Systems, Inc.

ICS9LPRS545

Datasheet

1479A—07/28/09

Pin Configuration

Recommended Application:

48-pin Low Cost CK505 w/fully integrated VREG and series

resistors on differential outputs

Output Features:

•

Integrated Series Resistors on differential outputs

•

2 - CPU differential push-pull pairs

•

4 - SRC differential push-pull pairs

•

1 - CPU/SRC selectable differential push-pull pair

•

1 - SRC/DOT selectable differential push-pull pair

•

1- SRC/Stop_Inputs selectable differential push-pull pair

•

1 - 25MHz SE1 output for Wake-on-Lan applications

•

3 - PCI, 33MHz

•

1 - USB, 48MHz

•

1 - REF, 14.31818MHz

Key Specifications:

•

CPU outputs cycle-cycle jitter < 85ps

•

SRC output cycle-cycle jitter < 125ps

•

PCI outputs cycle-cycle jitter < 250ps

•

+/-100ppm frequency accuracy on all clocks

48-pin CK505 for Intel Systems

ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.

ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.

Features/Benefits:

•

Supports spread spectrum modulation, default is 0.5%

down spread

•

Uses external 14.318MHz crystal, external crystal load

caps are required for frequency tuning

Not recommended for new designs.The last time

buy date for this product is 5/19/2011. Please refer

to PDN K-10-18.

Table 1: CPU Frequency Select Table

2

B0b7

1

B0b6

1

B0b5

CPU

MHz

SRC

MHz

PCI

MHz

REF

MHz

MHz

DOT

MHz

0

0

0

266.66

0

0

1

133.33

0

1

0

200.00

0

1

1

166.66

1

0

0

333.33

1

0

1

100.00

1

1

0

400.00

1

1

1

1. FS

the Input/Supply/Common Output Parameters Table for correct values.

Also refer to the Test Clarification Table.

2. FS

specifications in the Input/Supply/Common Output Parameters Table for correct values.

Reserved

100.00

33.33

14.318

48.00

96.00

PCI0/CR#_A 1

48 SCLK

VDDPCI 2

47 SDATA

PCI4/SRC5_EN 3

46 REF0/FSLC/TEST_SEL

PCI_F5/ITP_EN 4

45 VDDREF

GNDPCI 5

44 X1

VDD48 6

43 X2

USB_48MHz/FSLA 7

42 GNDREF

GND48 8

41 FSLB/TEST_MODE

VDD96_IO 9

40 CK_PWRGD/PD#

DOT96T_LPR/SRCT0_LPR 10

39 VDDCPU

DOT96C_LPR/SRCC0_LPR 11

38 CPUT0_LPR

GND 12

37 CPUC0_LPR

VDD 13

36 GNDCPU

SE1 14

35 CPUT1_LPR_F

GND 15

34 CPUC1_LPR_F

SRCT2_LPR/SATAT_LPR 16

33 VDDCPU_IO

SRCC2_LPR/SATAC_LPR 17

32 CPUT2_ITP_LPR/SRCT8_LPR

GNDSRC 18

31 CPUC2_ITP_LPR/SRCC8_LPR

SRCT3_LPR/CR#_C 19

30 VDDSRC_IO

SRCC3_LPR/CR#_D 20

29 SRCT7_LPR/CR#_F

VDDSRC_IO 21

28 SRCC7_LPR/CR#_E

SRCT4_LPR 22

27 GNDSRC

SRCC4_LPR 23

26 VDDSRC

CPU_STOP#/SRCC5_LPR 24

25 PCI_STOP#/SRCT5_LPR

48-SSOP/TSSOP

* Internal Pull-Up Resistor

** Internal Pull-Down Resistor