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9250CF-08 PDF预览

9250CF-08

更新时间: 2024-01-05 09:20:58
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
16页 281K
描述
Clock Generator

9250CF-08 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:,Reach Compliance Code:not_compliant
风险等级:5.92JESD-609代码:e0
湿度敏感等级:1端子面层:Tin/Lead (Sn85Pb15)
Base Number Matches:1

9250CF-08 数据手册

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ICS9250-08  
Integrated  
Circuit  
Systems, Inc.  
Frequency Generator & Integrated Buffers for Celeron & PII/III™  
Recommended Application:  
BX, Appollo Pro 133 type of chip set.  
Output Features:  
Pin Configuration  
VDDREF  
*FS2/REF1  
*PCI_STOP/REF0  
GND  
1
2
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
VDDLIOAPIC  
IOAPIC0  
IOAPIC_F  
GND  
CPUCLK_F  
CPUCLK1  
VDDLCPU  
CPUCLK2  
GND  
CPU_STOP#  
SDRAM_F  
VDDSDR  
SDRAM0  
SDRAM1  
GND  
SDRAM2  
SDRAM3  
SDRAM4  
SDRAM5  
VDDSDR  
SDRAM6  
SDRAM7  
GND  
3
4
5
6
7
8
9
3 - CPUs @2.5V, up to 150MHz.  
17 - SDRAM @ 3.3V, up to 150MHz.  
X1  
X2  
VDDPCI  
7 - PCI @3.3V  
2 - IOAPIC @ 2.5V  
1 - 48MHz, @3.3V fixed.  
1 - 24MHz @ 3.3V  
2 - REF @3.3V, 14.318MHz.  
*MODE/PCICLK_F  
**FS3/PCICLK0  
GND  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
PCICLK1  
PCICLK2  
PCICLK3  
PCICLK4  
VDDPCI  
PCICLK5  
BUFFERIN  
SDRAM11  
SDRAM10  
VDDSDR  
SDRAM9  
SDRAM8  
GND  
Features:  
Up to 150MHz frequency support  
Support power management: CPU, PCI, stop and  
Power down Mode form I2C programming.  
Spread spectrum for EMI control (0 to -0.5%,  
0.25%).  
Uses external 14.318MHz crystal  
Key Specifications:  
SDRAM15  
SDRAM14  
GND  
SDRAM12  
SDRAM13  
VDD48  
24MHz/FS0*  
48MHz/FS1*  
CPU – CPU: <175ps  
CPU – PCI: min = 1ns max = 4ns  
PCI – PCI: <250ps  
SDATA  
SCLK  
I2C  
{
SDRAM - SDRAM: <500ps  
56-Pin SSOP  
* Internal Pull-up Resistor of 240K to 3.3V on indicated inputs  
** Internal Pull-down resistor of 240K to GND on indicated inputs.  
Block Diagram  
PLL2  
48MHz  
24MHz  
Functionality  
÷2  
CPU  
(MHz)  
FS3  
FS2  
FS1  
FS0  
PCICLK (MHz)  
IOAPIC_F  
X1  
X2  
XTAL  
OSC  
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
133  
124  
33.3 (CPU/4)  
31 (CPU/4)  
37.5 (CPU/4)  
35 (CPU/4)  
STOP  
IOAPIC0  
REF [1:0]  
150  
140  
105  
110  
115  
120  
100.3  
133  
112  
103  
66.8  
83.3  
75  
2
CPUCLK_F  
CPUCLK [2:1]  
PLL1  
Spread  
Spectrum  
1
35 (CPU/3)  
36.67 (CPU/3)  
38.33 (CPU/3)  
40.00 (CPU/3)  
33.43 (CPU/3)  
44.33 (CPU/3)  
37.33 (CPU/3)  
34.33 (CPU/2)  
33.40 (CPU/2)  
41.65 (CPU/2)  
37.5 (CPU/2)  
41.33 (CPU/2)  
STOP  
STOP  
2
FS[3:0]  
MODE  
LATCH  
PCI  
CLOCK  
DIVDER  
PCICLK [5:0]  
PCICLK_F  
4
6
POR  
CPU_STOP#  
PCI_STOP#  
SCLK  
Control  
Logic  
Config.  
Reg.  
I2  
C
SDRAM [15:0]  
SDRAM_F  
STOP  
{
16  
SDATA  
124  
BUFFERIN  
0378J—05/17/05  

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