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Integrated Circuit Systems - Programmable Timing Control Hub for Desktop P4 Systems

Numéro de référence ICS954101
Description Programmable Timing Control Hub for Desktop P4 Systems
Fabricant Integrated Circuit Systems 
Logo Integrated Circuit Systems 





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ICS954101 fiche technique
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Integrated
Circuit
Systems, Inc.
ICS954101
Programmable Timing Control Hub™ for Desktop P4™ Systems
Recommended Application:
CK410 clock, Intel Yellow Cover part
Output Features:
• 2 - 0.7V current-mode differential CPU pairs
• 6 - 0.7V current-mode differential SRC pair for SATA and
PCI-E
• 1 - 0.7V current-mode differential CPU/SRC selectable
pair
• 6 - PCI (33MHz)
• 3 - PCICLK_F, (33MHz) free-running
• 1 - USB, 48MHz
• 1 - DOT, 96MHz, 0.7V current differential pair
• 1 - REF, 14.318MHz
Features/Benefits:
• Supports tight ppm accuracy clocks for Serial-ATA and
PCI-Express
• Supports spread spectrum modulation, 0 to -0.5%
down spread
• Supports CPU clks up to 400MHz
• Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
• Supports undriven differential CPU, SRC pair in PD#
for power management.
Key Specifications:
• CPU outputs cycle-cycle jitter < 85ps
• SRC output cycle-cycle jitter <125ps
• PCI outputs cycle-cycle jitter < 500ps
• +/- 300ppm frequency accuracy on CPU & SRC clocks
Functionality
FS_C1 FS_B2 FS_A2
0 00
0 01
0 10
0 11
1 00
1 01
1 10
1 11
CPU
SRC
MHz
MHz
266.66 100.00
133.33 100.00
200.00 100.00
166.66 100.00
333.33 100.00
100.00 100.00
400.00 100.00
RESERVED
PCI
MHz
33.33
33.33
33.33
33.33
33.33
33.33
33.33
REF
MHz
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
USB
MHz
48.00
48.00
48.00
48.00
48.00
48.00
48.00
48.00
DOT
MHz
96.00
96.00
96.00
96.00
96.00
96.00
96.00
96.00
1. FS_C is a three-level input. 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. FS_B and FS_A are low-threshold inputs. Please see the VIL_FS and VIH_FS
specifications in the Input/Supply/Common Output Parameters Table for correct values.
Pin Configuration
VDDPCI 1
GND 2
PCICLK3 3
PCICLK4 4
PCICLK5 5
GND 6
VDDPCI 7
ITP_EN/PCICLK_F0 8
PCICLK_F1 9
PCICLK_F2 10
VDD48 11
USB_48MHz 12
GND 13
DOTT_96MHz 14
DOTC_96MHz 15
FS_B/TEST_MODE 16
Vtt_PwrGd#/PD 17
FS_A_410 18
SRCCLKT1 19
SRCCLKC1 20
VDDSRC 21
SRCCLKT2 22
SRCCLKC2 23
SRCCLKT3 24
SRCCLKC3 25
SRCCLKT4_SATA 26
SRCCLKC4_SATA 27
VDDSRC 28
56 PCICLK2
55 PCICLK1
54 PCICLK0
53 FS_C/TEST_SEL
52 REFOUT
51 GND
50 X1
49 X2
48 VDDREF
47 SDATA
46 SCLK
45 GND
44 CPUCLKT0
43 CPUCLKC0
42 VDDCPU
41 CPUCLKT1
40 CPUCLKC1
39 IREF
38 GNDA
37 VDDA
36 CPUCLKT2_ITP/SRCCLKT_7
35 CPUCLKC2_ITP/SRCCLKC_7
34 VDDSRC
33 SRCCLKT6
32 SRCCLKC6
31 SRCCLKT5
30 SRCCLKC5
29 GND
56-pin SSOP & TSSOP
0815D—06/21/04
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