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C9819ATB

更新时间： 2024-02-25 04:38:52
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 光电二极管外围集成电路
页数 文件大小 规格书
17页 198K
描述
Processor Specific Clock Generator, CMOS, PDSO48, TSSOP-48

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中文翻译

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C9819ATB 技术参数

生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP,针数：48
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.8
JESD-30 代码：R-PDSO-G48JESD-609代码：e0
长度：12.5 mm端子数量：48
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
认证状态：Not Qualified座面最大高度：1.2 mm
表面贴装：YES技术：CMOS
端子面层：TIN LEAD端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
宽度：6.1 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches：1

C9819ATB 数据手册

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+/+…when timing is critical  
C9819  
133 MHz I2C Clock Generator for Mobile Pentium®III / Rambus Systems  
Preliminary  
Frequency Extension  
Frequency Extension is a feature in this device that allows the user to expand on the clock frequency originally selected  
following table 1, page1.  
This feature provides the user two additional selection lines FE1 and FE0 that are used to select the desired percentage  
of frequency extension.  
These signals are bi-directional strapping pins and are latched into the device at power up, as described on page 3.  
This feature does not effect the frequency of the 48MHz and REF(0:2) clocks, therefore, 48MHz and REF(0:2)  
frequencies remain the same regardless of the status of FE(0:1) and Sel133/100#.  
For default frequencies (100MHz or 133.3MHz) these signals should be connect high through a 10KΩ resistor to  
VDD.  
For extension option see table 5 below.  
When the frequency extension is applied Spread Spectrum is not applicable.  
Frequency Extension Table (MHz)  
Sel133/100# FE  
FE0  
0
1
0
1
0
1
0
CPU  
120  
110  
105  
100  
160  
146.67  
140  
133.3  
CPU/2  
60  
55  
52.5  
50  
80  
73.33  
70  
3V66(0:2) PCI(F,0:6)  
IOAPIC(0:1)  
20  
Function  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
80  
73.33  
70  
40  
36.67  
35  
20 % extension to 100 MHz  
10 % extension to 100 MHz  
5 % extension to 100 MHz  
0 %, DEFAULT, 100 MHz  
20 % extension to 133.3 MHz  
10 % extension to 133.3 MHz  
5 % extension to 133.3 MHz  
0 %, DEFAULT, 133.3 MHz  
18.33  
17.5  
16.67  
20  
18.33  
17.5  
16.67  
66.6  
80  
33.3  
40  
73.33  
70  
36.67  
35  
1
66.6  
66.6  
33.3  
Table 5.  
INTERNATIONAL MICROCIRCUITS, INC 525 LOS COCHES ST.  
MILPITAS, CA 95035, USA TEL: 408-263-6300 FAX 408-263-6571  
Rev 1.0  
11/1/1999  
Page 9 of 17  
http://www.imicorp.com  
1...6789101112...17

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