Integrated
Circuit
Systems, Inc.
ICS9LPRS545
Datasheet
48-pin CK505 for Intel Systems
Recommended Application:
Features/Benefits:
48-pin Low Cost CK505 w/fully integrated VREG and series
resistors on differential outputs
•
Supports spread spectrum modulation, default is 0.5%
down spread
•
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
1 - USB, 48MHz
Table 1: CPU Frequency Select Table
FSLC2 FSLB1 FSLA1
1 - REF, 14.31818MHz
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
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
100.00
33.33 14.318 48.00
96.00
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
VDDPCI
SCLK
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
SDATA
2
PCI4/SRC5_EN
PCI_F5/ITP_EN
GNDPCI
REF0/FSLC/TEST_SEL
VDDREF
3
4
X1
5
VDD48
X2
6
USB_48MHz/FSLA
GND48
GNDREF
7
FSLB/TEST_MODE
CK_PWRGD/PD#
VDDCPU
8
VDD96_IO
9
DOT96T_LPR/SRCT0_LPR
DOT96C_LPR/SRCC0_LPR
GND
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CPUT0_LPR
CPUC0_LPR
VDD
GNDCPU
SE1
CPUT1_LPR_F
CPUC1_LPR_F
VDDCPU_IO
GND
SRCT2_LPR/SATAT_LPR
SRCC2_LPR/SATAC_LPR
GNDSRC
CPUT2_ITP_LPR/SRCT8_LPR
CPUC2_ITP_LPR/SRCC8_LPR
VDDSRC_IO
SRCT3_LPR/CR#_C
SRCC3_LPR/CR#_D
VDDSRC_IO
SRCT7_LPR/CR#_F
SRCC7_LPR/CR#_E
GNDSRC
SRCT4_LPR
SRCC4_LPR
VDDSRC
CPU_STOP#/SRCC5_LPR
PCI_STOP#/SRCT5_LPR
48-SSOP/TSSOP
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
1479A—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.