参数资料
型号: ICS952011
英文描述: Programmable Timing Control Hub for P4 processor
中文描述: 可编程定时控制中心的P4处理器
文件页数: 1/25页
文件大小: 183K
代理商: ICS952011
Integrated
Circuit
Systems, Inc.
ICS952011
0721A—07/29/03
Pin Configuration
Recommended Application:
SIS 645/645DX/648/650 style chipsets.
Output Features:
2 - Pairs of differential CPUCLKs (differential current mode)
1 - SDRAM @ 3.3V
9 - PCI @3.3V (including 2 free-running)
2 - AGP @ 3.3V
2 - ZCLKs @ 3.3V
1- 12/48MHZ @ 3.3V
1- 24/48MHz, @3.3V selectable by I
2
C
3- REF @3.3V, 14.318MHz.
Key Specifications:
PCI - PCI output skew: < 500ps
CPU - SDRAM output skew: < 1ns
AGP - AGP output skew: <150ps
Programmable Timing Control Hub for P
4
processor
Functionality
Features/Benefits:
Selectable asynchronous/synchronous AGP, ZCLK and
PCI outputs
Supports DDR333 OEM frequencies
Programmable output frequency, divider ratios, output
rise/falltime, output skew.
Programmable spread percentage for EMI control.
Watchdog timer technology to reset system
if system malfunctions.
Programmable watch dog safe frequency.
Support I
2
C Index read/write and block read/write
operations.
For PC133 SDRAM system use the ICS9179-16 as the
memory buffer.
For DDR SDRAM system use the ICS93735 or
ICS93732 as the memory buffer.
Uses external 14.318MHz crystal.
VDDREF 1
**FS0/REF0 2
**FS1/REF1 3
**FS2/REF2 4
GNDREF 5
48 VDDSDR
47 SDRAM_OUT
46 GND
45 CPU_STOP#(PD#)*
44 CPUCLKT1
43 CPUCLKC1
42 VDDCPU
41 GNDCPU
40 CPUCLKT0
39 CPUCLKC0
38 IREF
37 GND
36 VDDA
35 SCLK
34 SDATA
33 Vtt_PwrGd/PD#(CPUSTOP#)*
32 GNDAGP
31 AGPCLK0
30 AGPCLK1
29 VDDAGP
28 VDD48
27 12_48MHz/SEL12_48#**
26 24_48MHz/SEL24_48#*~
25 GND48
X1 6
X2 7
GNDZ 8
ZCLK0 9
ZCLK1 10
VDDZ 11
*(PCI_STOP#)PCICLK6 12
VDDPCI 13
**FS3/PCICLK_F0 14
**FS4/PCICLK_F1 15
*MODE0/PCICLK0 16
PCICLK1 17
GNDPCI 18
VDDPCI 19
PCICLK2 20
PCICLK3 21
PCICLK4 22
PCICLK5 23
GNDPCI 24
48-SSOP
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
~ This output has 1.5X drive strength
I
Bit2
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
Bit7
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
Bit6
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
Bit5
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
Bit4
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
100.20
100.20
100.20
100.20
133.60
133.60
133.60
133.60
200.05
200.05
200.05
200.05
166.70
166.70
160.04
166.70
100.20
100.20
100.20
100.20
133.60
133.60
133.60
133.60
200.05
200.05
200.05
200.05
166.70
166.70
160.04
166.70
SDR
MHz
100.20
133.60
200.40
167.00
100.20
133.60
200.40
167.00
100.03
133.37
200.05
160.04
100.20
133.36
200.05
166.70
100.20
133.60
200.40
167.00
100.20
133.60
200.40
167.00
100.03
133.37
200.05
160.04
100.20
133.36
200.05
166.70
AGP
MHz
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.68
66.68
66.68
66.68
66.68
66.80
66.68
66.68
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.68
66.68
66.68
66.68
66.68
66.80
66.68
66.68
PCI
MHz
33.40
33.40
33.40
33.40
33.40
33.40
33.40
33.40
33.34
33.34
33.34
33.34
33.40
33.40
33.34
33.34
33.40
33.40
33.40
33.40
33.40
33.40
33.40
33.40
33.34
33.34
33.34
33.34
33.40
33.40
33.34
33.34
ZCLK
MHz
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.80
66.68
66.68
66.68
66.68
66.68
66.80
66.68
66.68
133.60
133.60
133.60
133.60
133.60
133.60
133.60
133.60
133.37
133.37
133.37
133.37
133.60
133.60
133.37
133.37
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