Integrated
Circuit
ICS932S208
Systems, Inc.
Programmable Timing Control Hub™ for Next Gen P4™ processor
Recommended Application:
Features/Benefits:
CK409B clock, Intel Yellow Cover part, Server Applications
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Supports tight ppm accuracy clocks for Serial-ATA
Supports spread spectrum modulation, 0 to -0.5%
down spread and +/- 0.25% center spread
Output Features:
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•
•
•
•
•
•
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4 - 0.7V current-mode differential CPU pairs
1 - 0.7V current-mode differential SRC pair
7 - PCI (33MHz)
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Supports CPU clks up to 400MHz in test mode
Uses external 14.318MHz crystal
3 - PCICLK_F, (33MHz) free-running
1 - USB, 48MHz
1 - DOT, 48MHz
2 - REF, 14.318MHz
4 - 3V66, 66.66MHz
1 - VCH/3V66, selectable 48MHz or 66MHz
Key Specifications:
Pin Configuration
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CPU/SRC outputs cycle-cycle jitter < 125ps
3V66 outputs cycle-cycle jitter < 250ps
PCI outputs cycle-cycle jitter < 250ps
CPU outputs skew: < 100ps
REF0
REF1
VDDREF
X1
1
2
3
4
5
6
7
8
9
56 FS_B
55 VDDA
54 GNDA
53 GND
52 IREF
51 FS_A
50 CPUCLKT3
49 CPUCLKC3
48 VDDCPU
47 CPUCLKT2
46 CPUCLKC2
45 GND
44 CPUCLKT1
43 CPUCLKC1
42 VDDCPU
41 CPUCLKT0
40 CPUCLKC0
39 GND
+/- 300ppm frequency accuracy on CPU & SRC clocks
X2
GND
PCICLK_F0
PCICLK_F1
PCICLK_F2
Functionality
CPU
B6b5 FS_A FS_B MHz
SRC
MHz
3V66 PCI
MHz MHz
REF USB/DOT
MHz
MHz
48.00
Ref/N5
48.00
48.00
48.00
Hi-Z
48.00
48.00
48.00
48.00
0
0
0
1
1
1
0
0
1
1
0
100 100/200 66.66 33.33 14.318
VDDPCI 10
GND 11
MID Ref/N0 Ref/N1 Ref/N2 Ref/N3 Ref/N4
1
0
1
200 100/200 66.66 33.33 14.318
133 100/200 66.66 33.33 14.318
166 100/200 66.66 33.33 14.318
0
1
PCICLK0 12
PCICLK1 13
PCICLK2 14
PCICLK3 15
VDDPCI 16
GND 17
PCICLK4 18
PCICLK5 19
PCICLK6 20
PD# 21
MID Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
0
1
0
1
200 100/200 66.66 33.33 14.318
400 100/200 66.66 33.33 14.318
266 100/200 66.66 33.33 14.318
333 100/200 66.66 33.33 14.318
38 SRCCLKT
37 SRCCLKC
36 VDD
3V66_0 22
3V66_1 23
VDD3V66 24
GND 25
3V66_2 26
3V66_3 27
SCLK 28
35 Vtt_PWRGD#
34 VDD48
33 GND
32 48MHz_DOT
31 48MHz_USB
30 SDATA
29 3V66_4/VCH
56-pin SSOP & TSSOP
0743D—07/07/04