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542MLFT PDF预览

542MLFT

更新时间: 2024-01-30 23:03:50
品牌 Logo 应用领域
艾迪悌 - IDT 时钟驱动器逻辑集成电路光电二极管
页数 文件大小 规格书
6页 171K
描述
CLOCK DIVIDER

542MLFT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:0.68
系列:542输入调节:STANDARD
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm逻辑集成电路类型:LOW SKEW CLOCK DRIVER
最大I(ol):0.025 A湿度敏感等级:1
功能数量:1反相输出次数:
端子数量:8实输出次数:2
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260电源:3.3 V
Prop。Delay @ Nom-Sup:15 ns传播延迟(tpd):15 ns
认证状态:Not QualifiedSame Edge Skew-Max(tskwd):0.5 ns
座面最大高度:1.75 mm子类别:Clock Drivers
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn) - annealed端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

542MLFT 数据手册

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ICS542  
CLOCK DIVIDER  
CLOCK DIVIDER  
Pin Assignment  
Clock Decoding Table  
S1 S0  
CLK  
CLK/2  
Power Down All  
ICLK  
VDD  
GND  
S0  
8
7
6
5
1
2
3
4
CLK  
CLK/2  
OE  
0
0
1
1
0
1
0
1
Input/6  
Input/8  
Input/2  
Input/12  
Input/16  
Input/4  
S1  
0 = connect directly to ground  
1 = connect directly to VDD  
8-pin (150 mil) SOIC  
Pin Descriptions  
Pin  
Number  
Pin  
Name  
Pin  
Type  
Pin Description  
1
2
3
ICLK  
VDD  
GND  
XI  
Clock input.  
Power  
Power  
Connect to +3.3 V or +5 V.  
Connect to ground.  
Select 0 for output clock. Connect to GND or VDD, per decoding table above.  
Internal pull-up resistor.  
Select 1 for output clock. Connect to GND or VDD, per decoding table above.  
Internal pull-up resistor.  
Output Enable. Tri-states both output clocks when low. Internal pull-up  
resistor.  
4
5
6
S0  
S1  
OE  
Input  
Input  
Input  
7
8
CLK/2  
CLK  
Output Clock output per table above. Low skew divide by two of pin 8 clock.  
Output Clock output per table above.  
External Components  
Series Termination Resistor  
PCB Layout Recommendations  
Clock output traces over one inch should use series  
termination. To series terminate a 50trace (a commonly  
used trace impedance), place a 33resistor in series with  
the clock line, as close to the clock output pin as possible.  
The nominal impedance of the clock output is 20.  
For optimum device performance and lowest output phase  
noise, the following guidelines should be observed.  
1) The 0.01µF decoupling capacitor should be mounted on  
the component side of the board as close to the VDD pin as  
possible. No vias should be used between decoupling  
capacitor and VDD pin. The PCB trace to VDD pin should  
be kept as short as possible, as should the PCB trace to the  
ground via. Distance of the ferrite bead and bulk decoupling  
from the device is less critical.  
Decoupling Capacitor  
As with any high-performance mixed-signal IC, the ICS542  
must be isolated from system power supply noise to perform  
optimally.  
A decoupling capacitor of 0.01µF must be connected  
between VDD and the PCB ground plane.  
2) To minimize EMI, the 33series termination resistor (if  
needed) should be placed close to the clock output.  
3) An optimum layout is one with all components on the  
IDT™ / ICS™ CLOCK DIVIDER  
2
ICS542  
REV J 051310  

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