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ICS952011 PDF预览

ICS952011

更新时间: 2024-11-21 04:44:23
品牌 Logo 应用领域
矽成 - ICSI /
页数 文件大小 规格书
25页 170K
描述
Programmable Timing Control Hub for P4 processor

ICS952011 数据手册

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Integrated  
Circuit  
ICS952011  
Systems, Inc.  
Programmable Timing Control Hub™ for P4™ processor  
Recommended Application:  
Features/Benefits:  
SIS 645/645DX/648/650 style chipsets.  
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.  
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  
Programmable watch dog safe frequency.  
1- 12/48MHZ @ 3.3V  
Support I2C Index read/write and block read/write  
operations.  
1- 24/48MHz, @3.3V selectable by I2C  
3- REF @3.3V, 14.318MHz.  
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.  
Key Specifications:  
PCI - PCI output skew: < 500ps  
CPU - SDRAM output skew: < 1ns  
AGP - AGP output skew: <150ps  
Uses external 14.318MHz crystal.  
Functionality  
Pin Configuration  
Bit2  
FS4  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit7  
FS3  
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
Bit6  
FS2  
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
Bit5  
FS1  
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
Bit4  
FS0  
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
CPU  
MHz  
SDR  
MHz  
AGP  
MHz  
PCI  
MHz  
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  
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  
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  
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  
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  
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  
X1 6  
X2 7  
GNDZ 8  
ZCLK0 9  
ZCLK1 10  
VDDZ 11  
41 GNDCPU  
40 CPUCLKT0  
39 CPUCLKC0  
38 IREF  
37 GND  
36 VDDA  
*(PCI_STOP#)PCICLK6 12  
VDDPCI 13  
**FS3/PCICLK_F0 14  
**FS4/PCICLK_F1 15  
*MODE0/PCICLK0 16  
PCICLK1 17  
GNDPCI 18  
35 SCLK  
34 SDATA  
0
1
1
0
1
0
1
0
1
0
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  
1
0
0
0
1
33 Vtt_PwrGd/PD#(CPUSTOP#)*  
32 GNDAGP  
31 AGPCLK0  
30 AGPCLK1  
29 VDDAGP  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VDDPCI 19  
PCICLK2 20  
PCICLK3 21  
PCICLK4 22  
PCICLK5 23  
GNDPCI 24  
28 VDD48  
27 12_48MHz/SEL12_48#**  
26 24_48MHz/SEL24_48#*~  
25 GND48  
48-SSOP  
* Internal Pull-Up Resistor  
** Internal Pull-Down Resistor  
~ This output has 1.5X drive strength  
0721A—07/29/03  

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