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345R-XXLFT PDF预览

345R-XXLFT

更新时间: 2024-02-29 02:16:35
品牌 Logo 应用领域
艾迪悌 - IDT 晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
9页 209K
描述
Clock Generator, 200MHz, CMOS, PDSO20, 0.150 INCH, ROHS COMPLIANT, SSOP-20

345R-XXLFT 技术参数

生命周期:Obsolete零件包装代码:SSOP
包装说明:0.150 INCH, SSOP-20针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.55
JESD-30 代码:R-PDSO-G20JESD-609代码:e0
长度:8.65 mm端子数量:20
最高工作温度:70 °C最低工作温度:
最大输出时钟频率:200 MHz封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH主时钟/晶体标称频率:50 MHz
认证状态:Not Qualified座面最大高度:1.75 mm
最大供电电压:3.45 V最小供电电压:3.15 V
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
宽度:3.9 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

345R-XXLFT 数据手册

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DATASHEET  
TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER ICS345  
Description  
Features  
The ICS345 field programmable clock synthesizer  
generates up to nine high-quality, high-frequency clock  
outputs including multiple reference clocks from a  
low-frequency crystal or clock input. It is designed to  
replace crystals and crystal oscillators in most electronic  
systems.  
Packaged as 20-pin SSOP (QSOP)  
Spread spectrum capability  
Eight addressable registers  
Replaces multiple crystals and oscillators  
Output frequencies up to 200 MHz at 3.3 V  
Input crystal frequency of 5 to 27 MHz  
Input clock frequency of 2 to 50 MHz  
Up to nine reference outputs  
TM  
Using IDT’s VersaClock software to configure PLLs and  
outputs, the ICS345 contains a One-Time Programmable  
(OTP) ROM to allow field programmability. Programming  
features include eight selectable configuration registers, up  
to two sets of four low-skew outputs, and optional Spread  
Spectrum outputs.  
Up to two sets of four low-skew outputs  
Operating voltages of 3.3 V  
Advanced, low-power CMOS process  
Using Phase-Locked Loop (PLL) techniques, the device  
runs from a standard fundamental mode, inexpensive  
crystal, or clock. It can replace multiple crystals and  
oscillators, saving board space and cost.  
For one output clock, use the ICS341. For two output  
clocks, see the ICS342. For three output clocks, see the  
ICS343. For more than three outputs, see the ICS345 or  
ICS348.  
Available in Pb (lead) free packaging  
The ICS345 is also available in factory programmed custom  
versions for high-volume applications.  
Block Diagram  
3
VDD  
PLL1 with  
Spread  
CLK1  
CLK2  
CLK3  
CLK4  
CLK5  
CLK6  
CLK7  
CLK8  
CLK9  
3
OTP  
S2:S0  
ROM  
with  
Spectrum  
PLL  
Divide  
Logic  
Values  
PLL2  
PLL3  
and  
Output  
Enable  
Control  
Crystal or  
clock input  
X1/ICLK  
Crystal  
Oscillator  
X2  
GND  
2
External capacitors are  
required with a crystal input.  
PDTS  
IDT™ / ICS™ TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER 1  
ICS345  
REV K 110207  

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