Integrated
Circuit
Systems, Inc.
ICS954119
Advance Information
Programmable Timing Control Hub™ for Next Gen P4™ processor
Recommended Application:
Features/Benefits:
CK410 compliant clock
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Programmable output frequencies
Programmable output skew.
Output Features:
Programmable spread percentage for EMI control.
Programmable watch dog safe frequency.
Supports tight ppm accuracy clocks for Serial-ATA
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2 - 0.7V current-mode differential CPU pairs
1 - 0.7V current-mode differential SRC pair
6 - PCI (33MHz)
Supports spread spectrum modulation, 0 to -0.5%
down spread, ±0.25% center spread, and ±0.3%
center spread
3 - PCICLK_F, (33MHz) free-running
1 - USB, 48MHz
1 - 24/48 MHz
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Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
1 - DOT, 96MHz, 0.7V current differential pair
2 - REF, 14.318MHz
Supports undriven differential CPU, SRC pair in PD#
for power management.
5 - PCI-Express 0.7V current differential pairs
Key Specifications:
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CPU/SRC outputs cycle-cycle jitter < 85ps
PCI outputs cycle-cycle jitter < 250ps
+/- 300ppm frequency accuracy on CPU & SRC clocks
Functionality
Pin Configuration
Bit2 Bit1 Bit0
FSLC FSLB FSLA MHz
CPU
PCIEX
MHz
SRC
MHz
PCI
MHz
33.33
GND 1
PCICLK3 2
PCICLK4 3
PCICLK5 4
GND 5
56 VDDPCI
55 PCICLK2
54 PCICLK1
53 PCICLK0
52 Reset#
Bit4 Bit3
266.66 100.00 100.00
133.33 100.00 100.00
200.00 100.00 100.00
166.66 100.00 100.00
333.33 100.00 100.00
100.00 100.00 100.00
400.00 100.00 100.00
200.00 100.00 100.00
266.66 133.33 133.33
133.33 133.33 133.33
200.00 133.33 133.33
166.66 125.00 125.00
333.33 125.00 125.00
100.00 133.33 133.33
400.00 133.33 133.33
200.00 133.33 133.33
269.33 101.00 101.00
134.66 101.00 101.00
202.00 101.00 101.00
168.33 101.00 101.00
274.66 103.00 103.00
137.33 103.00 103.00
206.00 103.00 103.00
171.66 103.00 103.00
279.99 105.00 105.00
140.00 105.00 105.00
210.00 105.00 105.00
174.99 105.00 105.00
287.99 108.00 108.00
144.00 108.00 108.00
216.00 108.00 108.00
179.99 108.00 108.00
0
0
0
0
0
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.67
33.67
33.67
33.67
34.33
34.33
34.33
34.33
35.00
35.00
35.00
35.00
36.00
36.00
36.00
36.00
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
1
0
1
0
VDDPCI 6
51 REF0/FSLC
0
0
0
0
1
1
0
1
1
0
PCICLK_F0 7
FSLA/PCICLK_F1 8
FSLB/PCICLK_F2 9
50 REF1
49 GND
48 X1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VDD48 10
47 X2
46 VDDREF
45 SCLK
44 SDATA
43 CPUCLKT0
42 CPUCLKC0
41 VDDCPU
40 CPUCLKT1
39 CPUCLKC1
38 GND
37 IREF
36 GNDA
35 VDDA
34 VDDPCIEX
33 PCIEXT4
32 PCIEXC4
31 PCIEXT3
30 PCIEXC3
29 GND
**SEL24_48#/24_48MHz 11
USB_48MHz 12
GND 13
DOTT_ 96MHz 14
DOTC_96MHz 15
Vtt_PwrGd#/PD 16
PCIEXT0 17
PCIEXC0 18
VDDPCIEX 19
GND 20
PCIEXT1 21
PCIEXC1 22
PCIEXT2 23
PCIEXC2 24
GND 25
SRCCLKT 26
SRCCLKC 27
VDDSRC 28
1
1
1
1
1
1
1
1
0
1
56-Pin SSOP
* Entries 00111 & 01111 are 250MHz on the B & C revision.
0875—05/24/04
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
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.