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IMISG508APB PDF预览

IMISG508APB

更新时间： 2024-02-27 09:56:53
品牌 Logo 应用领域
其他 - ETC 时钟发生器
页数 文件大小 规格书
7页 79K
描述
Miscellaneous Clock Generator

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IMISG508APB 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.87
其他特性：POWER-DOWN MODEJESD-30 代码：R-PDIP-T16
JESD-609代码：e0长度：19.05 mm
端子数量：16最高工作温度：70 °C
最低工作温度：最大输出时钟频率：40 MHz
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED主时钟/晶体标称频率：44.2 MHz
认证状态：Not Qualified座面最大高度：3.93 mm
最大供电电压：5.5 V最小供电电压：4.5 V
标称供电电压：5 V表面贴装：NO
技术：CMOS温度等级：COMMERCIAL
端子面层：TIN LEAD (800)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
uPs/uCs/外围集成电路类型：CLOCK GENERATOR, PROCESSOR SPECIFICBase Number Matches：1

IMISG508APB 数据手册

 浏览型号IMISG508APB的Datasheet PDF文件第2页浏览型号IMISG508APB的Datasheet PDF文件第3页浏览型号IMISG508APB的Datasheet PDF文件第4页浏览型号IMISG508APB的Datasheet PDF文件第5页浏览型号IMISG508APB的Datasheet PDF文件第6页浏览型号IMISG508APB的Datasheet PDF文件第7页 
IMISG508  
REDUCED EMI CLOCK CHIP  
CMOS LSI  
May 1996  
SPECTRUM SPREAD CLOCK GENERATOR  
PRODUCT FEATURES  
PRODUCT DESCRIPTION  
þ
Generates CPU Clock Signals for Microprocessor  
Systems  
The IMISG508 is a spectrum spread clock generator  
specially designed for personal computers, laser  
printers and other digital systems. IMISG508 uses a  
patented concept to generate popular clock frequencies  
that are intentionally boradbanded to reduce  
electromagnetic interference. IMISG508 attenuates the  
radiated emission amplitudes from products associated  
with either the clock harmonics or any signals derived  
from the clock signals nominally 10 dB and could  
significantly reduce the cost of complying with the  
regulatory requirements.  
þ
þ
þ
þ
Reduces Measured EMI by 10 dB nominal  
4V to 6V Operating Supply Range  
Supports CPUs from all major manufacturers  
Wide Range of Selectable Output Frequencies  
including 40, 30, 25, and 16.7 MHz.  
þ
Single, Low Cost Crystal used as Reference  
Frequency  
PRCLK is the broadbanded output and can be  
programmed by the PRCLK Frequency Selection Table  
on page 2. A single, low cost external crystal is  
required as reference frequency for the synthesizer.  
Output modulation function can be turned off with the  
SSON pin. Several power down modes add the  
flexibility to operate the device in a completely static  
mode to reduce standby currents and simplify system  
board tests.  
þ
þ
þ
þ
Glitch-Free Switching  
50% Duty Cycle  
Power Down Mode for Low Power consumption  
TTL or CMOS Compatible Outputs with 6 mA Drive  
Capability  
CONNECTION DIAGRAM  
þ
þ
Low, Short- and Long-Term Jitter  
1
2
3
4
5
6
7
8
TS  
16  
15  
14  
13  
12  
11  
10  
9
VDD  
OSCin  
OSCout  
VSS  
MPSEL  
AVDD  
S0  
VDD  
MPCLK  
VSS  
PRCLK  
AVSS  
LF1  
16 Pin PDIP and 16 Pin SOIC (300 mil Body)  
Package Options  
BLOCK DIAGRAM  
3
SSON  
S1  
14  
44.2  
MHz  
/4 or /12  
REF  
MPCLK  
2
5
APPLICATIONS  
MPSEL  
The IMISG508 eliminates the need for multiple  
oscillators and generates the CPU clock signals for  
personal computers, laser printers and other digital  
systems. Supports CPUs from all major manufacturers.  
IMISG508 can be used with laptop or notebook  
computers to save power by running the system slower  
than normal CPU speeds or completely disabling the  
clocks in standby mode.  
10  
LF  
S0  
S1  
TS  
7
8
SPECTRUM  
SPREAD  
CLOCK GEN  
12  
PRCLK  
/2  
16  
9
SSON  
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.  
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571  
Rev. 1.0  
Page 1 of 7  
1234567

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