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參數資料
| 型號： | ICS952607YFLF-T |
| 元件分類： | 時鐘產生/分配 |
| 英文描述： | 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | LEAD FREE, MO-118, SSOP-48 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 204K |
| 代理商： | ICS952607YFLF-T |
Integrated
Circuit
Systems, Inc.
ICS952607
0734A—A07/26/05
Pin Configuration
Recommended Application:
CK409 Compliant clock for Next Gen P4 Processor
Output Features:
2 - 0.7V current-mode differential CPU pairs
1 - 0.7V current-mode differential SRC pair
9 - PCI, 3 free running, 33MHz
3 - REF, 14.318MHz
3 - 3V66, 66.66MHz
1 - VCH/3V66, selectable 48MHz or 66MHz
2 - 48MHz
1 - 24/48MHz
Key Specifications:
CPU/SRC outputs cycle-cycle jitter < 125ps
3V66 outputs cycle-cycle jitter < 250ps
PCI outputs cycle-cycle jitter < 250ps
+/- 300ppm frequency accuracy on CPU & SRC clocks
Programmable Timing Control Hub for Next Gen P4 processor
Functionality
Features/Benefits:
QuadRom
TM frequency selection.
Programmable output frequency.
Programmable asynchronous 3V66&PCI frequency.
Programmable output divider ratios.
Programmable output rise/fall time.
Programmable output skew.
Programmable spread percentage for EMI control.
Watchdog timer technology to reset system if system
malfunctions.
Programmable watch dog safe frequency.
Support I2C Index read/write and block read/write
operations.
Uses external 14.318MHz reference input.
Supports tight ppm accuracy clocks for Serial-ATA
Supports spread spectrum modulation, 0 to -0.5%
down spread and +/- 0.25% center spread
Supports CPU clks up to 400MHz
48-pin SSOP
Note: FS1 and FS0 are equal to Intel CK409-defined FSA and FSB,
respectively.
*FS1/REF0
1
48 VDDA
*FS0/REF1
2
47 GND
REF2
3
46 IREF
VDDREF
4
45 Reset#
X1
5
44 GND
X2
6
43 CPUCLKT1
GND
7
42 CPUCLKC1
**FS2/PCICLK_F0
8
41 VDDCPU
**FS4/PCICLK_F1
9
40 CPUCLKT0
PCICLK_F2
10
39 CPUCLKC0
VDDPCI
11
38 GND
GND
12
37 SRCCLKT
^^PCICLK0
13
36 SRCCLKC
PCICLK1
14
35 VDD
PCICLK2
15
34 VttPWR_GD/PD#
PCICLK3
16
33 SDATA
VDDPCI
17
32 SCLK
GND
18
31 3V66_0
PCICLK4
19
30 3V66_1
PCICLK5
20
29 GND
**Sel24_48#/24_48MHz
21
28 VDD3V66
**FS3/48MHz_0
22
27 3V66_2
48MHz_1
23
26 3V66_3/VCH
GND
24
25 VDD48
^^ An external 2.2K pull-down resistor is needed on this pin
IC
S
952607
* This pin have 120K pull-up to VDD
** This pin have 120K pull-down to GND
Bit4 Bit3 Bit2 Bit1 Bit0
CPU
AGP
PCI
FS4 FS3 FS2 FS1 FS0
MHz
00
000
100.00
66.66
33.33
00
001
200.00
66.66
33.33
00
010
133.33
66.66
33.33
00
011
166.67
66.66
33.33
0
1
0
200.00
66.66
33.33
00
101
400.00
66.66
33.33
00
110
266.67
66.66
33.33
00
111
333.33
66.66
33.33
01
000
100.99
67.33
33.66
01
001
201.98
67.33
33.66
01
010
134.65
67.33
33.66
01
011
168.31
67.32
33.66
01
1
00
115.00
76.66
38.33
01
101
230.00
76.66
38.33
01
110
153.33
76.66
38.33
01
111
191.67
76.66
38.33
1
0
000
100.00
66.66
33.33
10
001
200.00
66.66
33.33
10
010
133.33
66.66
33.33
10
011
166.67
71.43
35.71
1
0
1
0
200.00
66.66
33.33
10
101
400.00
66.66
33.33
10
110
266.67
66.66
33.33
10
111
333.33
66.66
33.33
11
000
105.00
69.99
35.00
11
001
210.00
69.99
35.00
11
010
140.00
69.99
35.00
11
011
175.00
69.99
35.00
11
1
00
110.00
73.33
36.66
11
101
220.00
73.33
36.66
11
110
146.66
73.33
36.66
11
111
183.34
73.33
36.66
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