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ICS9248-114 PDF预览

ICS9248-114

更新时间: 2024-09-28 22:11:03
品牌 Logo 应用领域
矽成 - ICSI 时钟
页数 文件大小 规格书
14页 146K
描述
AMD - K7⑩ System Clock Chip

ICS9248-114 数据手册

 浏览型号ICS9248-114的Datasheet PDF文件第2页浏览型号ICS9248-114的Datasheet PDF文件第3页浏览型号ICS9248-114的Datasheet PDF文件第4页浏览型号ICS9248-114的Datasheet PDF文件第5页浏览型号ICS9248-114的Datasheet PDF文件第6页浏览型号ICS9248-114的Datasheet PDF文件第7页 
Integrated  
Circuit  
Systems, Inc.  
ICS9248-114  
AMD - K7System Clock Chip  
Recommended Application:  
VIA K7 style chipset  
Output Features:  
Pin Configuration  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
VDD1  
REF0/CPU_STOP#*  
GND  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
REF1/FS2*  
GND  
CPUCLKT1  
1 - Differential pair open drain CPU clocks  
1 - Single-ended open drain CPU clock  
13 - SDRAM @ 3.3V  
6 - PCI @3.3V,  
1 - 48MHz, @3.3V fixed.  
X1  
X2  
VDD2  
GND  
CPUCLKC0  
CPUCLKT0  
VDDL  
PD#*  
SDRAM_OUT  
GND  
SDRAM0  
SDRAM1  
VDD3  
SDRAM2  
SDRAM3  
GND  
SDRAM4  
SDRAM5  
VDD3  
SDRAM6  
SDRAM7  
VDD4  
*MODE/PCICLK_F  
*FS3/PCICLK0  
GND  
1 - 24/48MHz @ 3.3V  
2 - REF @3.3V, 14.318MHz.  
*SEL24_48#/PCICLK1  
PCICLK2  
PCICLK3  
PCICLK4  
VDD2  
Features:  
Up to 155MHz frequency support  
BUFFER IN  
Support power management: CPU stop and Power down  
Mode from I2C programming.  
GND  
SDRAM11  
SDRAM10  
VDD3  
SDRAM9  
SDRAM8  
GND  
Spread spectrum for EMI control (0 to -0.5% down  
spread, 0.25% center spreadꢀ.  
Uses external 14.318MHz crystal  
Skew Specifications:  
SDATA  
SCLK  
48MHz/FS0*  
24/48MHz/FS1*  
CPUT – CPUC: <200ps  
PCI – PCI: <500ps  
CPU – PCI: <500ps  
48-Pin 300mil SSOP  
*
Internal Pull-up Resistor of 120K to VDD  
Functionality  
Block Diagram  
CPU  
PCICLK  
(MHz)  
41.33  
37.50  
41.65  
33.40  
34.33  
37.33  
44.43  
33.33  
40.00  
38.33  
36.67  
35.00  
35.00  
37.50  
31.00  
33.33  
PLL2  
48MHz  
FS3  
FS2  
FS1  
FS0  
(MHz)  
124.00  
75.00  
83.30  
66.80  
103.00  
112.00  
133.30  
100.00  
120.00  
115.00  
110.00  
105.00  
140.00  
150.00  
124.00  
133.30  
24_48MHz  
/ 2  
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
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
0
1
X1  
X2  
XTAL  
OSC  
REF (1:0)  
PLL1  
Spread  
Spectrum  
CPU  
DIVDER  
Stop  
CPUCLKC0  
CPUCLKT (1:0)  
SEL24_48#  
PCI  
DIVDER  
PCICLK (4:0)  
PCICLK_F  
Control  
Logic  
SDATA  
SCLK  
FS (3:0)  
Config.  
Reg.  
SDRAM  
DRIVER  
SDRAM (11:0)  
SDRAM_OUT  
PD#  
CPU_STOP#  
BUFFER IN  
ICS reserves the right to make changes in the device data identified in  
this publication without further notice. ICS advises its customers to  
obtain the latest version of all device data to verify that any  
9248-114 Rev C 01/24/01  
Third party brands and names are the property of their respective owners.  
information being relied upon by the customer is current and accurate.  

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