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ICS9248-141 PDF预览

ICS9248-141

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 156K
描述
AMD - K7⑩ System Clock Chip

ICS9248-141 数据手册

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Integrated  
Circuit  
Systems, Inc.  
ICS9248-141  
AMD - K7System Clock Chip  
Recommended Application:  
VIA KX133 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  
VDDREF  
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  
VDDPCI  
GND  
CPUCLKC0  
CPUCLKT0  
VDDA  
PD#*  
SDRAM_OUT  
GND  
SDRAM0  
SDRAM1  
VDDSDR  
SDRAM2  
SDRAM3  
GND  
SDRAM4  
SDRAM5  
VDDSDR  
SDRAM6  
SDRAM7  
VDD48  
*MODE/PCICLK_F  
*FS3/PCICLK0  
GND  
1 - 24/48MHz @ 3.3V  
2 - REF @3.3V, 14.318MHz.  
*SEL24_48#/PCICLK1  
PCICLK2  
PCICLK3  
PCICLK4  
VDDPCI  
Features:  
Up to 166MHz frequency support  
BUFFER IN  
Support power management: CPU stop and Power down  
Mode from I2C programming.  
GND  
SDRAM11  
SDRAM10  
VDDSDR  
SDRAM9  
SDRAM8  
GND  
Spread spectrum for EMI control  
(
ꢀ.2ꢁ5 center spreadꢂ.  
Uses external 14.318MHz crystal  
SDATA  
SCLK  
48MHz/FS0*  
24/48MHz/FS1*  
48-Pin 300mil SSOP  
*
Internal Pull-up Resistor of 120K to VDD  
Functionality  
Block Diagram  
CPU  
(MHz)  
90.00  
PCICLK  
(MHz)  
30.00  
31.67  
33.67  
34.00  
33.57  
34.33  
35.00  
33.33  
35.67  
36.33  
36.67  
37.00  
37.67  
38.33  
39.00  
33.33  
PLL2  
48MHz  
FS3  
FS2  
FS1  
FS0  
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
95.00  
X1  
X2  
XTAL  
OSC  
REF (1:0)  
101.00  
102.00  
100.90  
103.00  
105.00  
100.00  
107.00  
109.00  
110.00  
111.00  
113.00  
115.00  
117.00  
133.30  
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 information being relied upon by the customer is  
9248-141 Rev B 01/18/01  
Third party brands and names are the property of their respective owners.  

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