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ICS952802 Datasheet

  • ICS952802

  • Programmable Timing Control Hu for P4 processor

  • 19頁

  • ICS

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Integrated
Circuit
Systems, Inc.
ICS952802
Advance Information
Programmable Timing Control Hub鈩?for P4鈩?processor
Recommended Application:
SiS755/760 style chipset for AMD K8 Processor
Output Features:
鈥?/div>
2 - Pairs of differential push-pull K8CPU outputs
鈥?/div>
10 - PCICLK @ 3.3V
鈥?/div>
2 - AGPCLK @ 3.3V
鈥?/div>
3 - REF @ 3.3V
鈥?/div>
2 - ZCLK @ 3.3V
鈥?/div>
1 - 24_48MHz @ 3.3V
鈥?/div>
1 - 12_48MHz @ 3.3V
鈥?/div>
1 - PCI_12MHz @ 3.3V
Key Specifications:
鈥?/div>
CPU Output Jitter <250ps
鈥?/div>
AGP Output Jitter <250ps
Features/Benefits:
鈥?/div>
Selectable synchronous/asynchronous AGP/PCI/ZCLK
frequency
鈥?/div>
Linear Programmable output frequency.
鈥?/div>
Programmable output divider ratios.
鈥?/div>
Programmable output rise/fall time.
鈥?/div>
Programmable output skew.
鈥?/div>
Programmable spread percentage for EMI control.
鈥?/div>
Watchdog timer technology and system reset function
鈥?/div>
Programmable watch dog safe frequency.
鈥?/div>
Support I2C Index read/write and block read/write
operations.
鈥?/div>
Uses external 14.318MHz reference input.
Functionality
Bit4
FS4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Bit3
FS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit2
FS2
0
0
0
0
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
1
Bit1
FS1
0
0
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
1
0
0
1
1
Bit0
FS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CPU
MHz
160.00
200.00
200.00
200.00
186.66
233.33
233.33
233.33
213.34
266.67
266.67
266.67
133.34
166.67
166.67
166.67
206.00
210.00
202.00
202.00
240.33
245.00
235.66
235.66
106.66
133.33
133.33
133.33
171.67
175.00
168.34
168.34
ZCLK
MHz
106.66
133.33
133.33
160.00
106.67
133.33
133.33
155.55
106.66
133.33
133.33
160.00
106.66
133.33
133.33
166.66
137.33
140.00
134.66
161.60
137.33
140.00
134.67
157.11
106.66
133.33
133.33
177.77
137.33
140.00
134.66
168.33
AGP
MHz
53.33
66.67
66.67
66.67
53.33
66.67
66.67
66.67
53.33
66.67
66.67
66.67
53.33
66.67
66.67
66.67
68.67
70.00
67.33
67.33
68.67
70.00
67.33
67.33
53.33
66.67
66.67
66.67
68.67
70.00
67.33
67.33
PCI
MHz
26.66
33.33
33.33
33.33
26.66
33.33
33.33
33.33
26.66
33.33
33.33
33.33
26.66
33.33
33.33
33.33
34.33
35.00
33.66
33.66
34.33
35.00
33.66
33.66
26.66
33.33
33.33
33.33
34.33
35.00
33.66
33.66
Pin Configuration
VDDREF 1
*FS0/REF0 2
**FS1/REF1 3
**FS2/REF2 4
GNDREF 5
X1 6
X2 7
GNDZ 8
ZCLK0 9
VDDZ 11
*PCI_STOP#/PCICLK8 12
**FS3/PCICLK_F0 13
**FS4/PCICLK_F1 14
VDDPCI 15
GNDPCI 16
PCICLK0 17
PCICLK1 18
PCICLK2 19
PCICLK3 20
PCICLK4 21
PCICLK5 22
GNDPCI 23
VDDPCI 24
ZCLK1 10
48 CPU_STOP#/Reset#*
47 GNDCPU
46 CPUCLK8T1
45 CPUCLK8C1
44 VDDCPU
43 VDDCPU
42 CPUCLK8T0
41 CPUCLK8C0
40 GNDCPU
ICS952802
39 AGND
38 AVDD
37 PD#*
36 GNDAGP
35 AGPCLK0
34 AGPCLK1
33 VDDAGP
32 SCLK
31 AVDD48
30 12_48MHz/SEL12_48#**
29 24_48MHz/SEL24_48#*~
28 GND48
27 SDATA
26 PCICLK7/12MHz/SELPCI_12#**
25 PCICLK6/SEL_Reset#*
48-SSOP
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
~ This Output has 1.5X Drive Strength
0731鈥?9/18/02
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.

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