Integrated
Circuit
Systems, Inc.
ICS9LPRS535
Datasheet
48-pin CK505 for Intel Systems
Features/Benefits:
Recommended Application:
•
Supports spread spectrum modulation, default is 0.5%
down spread
48-pin Low Cost CK505 w/fully integrated VREG and series
resistors on differential outputs
•
Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
Output Features:
•
•
•
•
•
•
•
•
•
•
Integrated Series Resistors on differential outputs
2 - CPU differential push-pull pairs
Not recommended for new designs.The last time
buy date for this product is 5/19/2011. Please refer
toPDNK-10-18.
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
Table 1: CPU Frequency Select Table
FSLC2 FSLB1 FSLA1
CPU
MHz
SRC
MHz
PCI
REF
MHz
USB
MHz
DOT
MHz
MHz
B0b7
B0b6
B0b5
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
266.66
133.33
200.00
166.66
333.33
100.00
400.00
1 - USB, 48MHz
1 - REF, 14.31818MHz
100.00
33.33 14.318 48.00
96.00
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
Reserved
1. FSLA and FSLB are low-threshold inputs.Please see VIL_FS and VIH_FS specifications in
the Input/Supply/Common Output Parameters Table for correct values.
Also refer to the Test Clarification Table.
2. FSLC is a three-level input. Please see the VIL_FS and VIH_FS
specifications in the Input/Supply/Common Output Parameters Table for correct values.
Pin Configuration
PCI0/CR#_A 1
VDDPCI 2
48 SCLK
47 SDATA
PCI4/SRC5_EN 3
PCI_F5/ITP_EN 4
GNDPCI 5
46 REF0/FSLC/TEST_SEL
45 VDDREF
44 X1
VDD48 6
43 X2
USB_48MHz/FSLA 7
GND48 8
42 GNDREF
41 FSLB/TEST_MODE
40 CK_PWRGD/PD#
39 VDDCPU
VDD96_IO 9
DOT96T_LPR/SRCT0_LPR 10
DOT96C_LPR/SRCC0_LPR 11
GND 12
38 CPUT0_LPR
37 CPUC0_LPR
36 GNDCPU
VDD 13
SE1 14
35 CPUT1_LPR_F
34 CPUC1_LPR_F
33 VDDCPU_IO
GND 15
SRCT2_LPR/SATAT_LPR 16
SRCC2_LPR/SATAC_LPR 17
GNDSRC 18
32 CPUT2_ITP_LPR/SRCT8_LPR
31 CPUC2_ITP_LPR/SRCC8_LPR
30 VDDSRC_IO
SRCT3_LPR/CR#_C 19
SRCC3_LPR/CR#_D 20
VDDSRC_IO 21
29 SRCT7_LPR/CR#_F
28 SRCC7_LPR/CR#_E
27 GNDSRC
SRCT4_LPR 22
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
1461A—07/28/09
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.