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MCCS142236DW PDF预览

MCCS142236DW

更新时间： 2024-11-26 21:09:47
品牌 Logo 应用领域
安森美 - ONSEMI 光电二极管接口集成电路
页数 文件大小 规格书
8页 56K
描述
18-LINE 110ohm SCSI BUS TERMINATOR, PDSO28, PLASTIC, SOIC-28

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中文翻译

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MCCS142236DW 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：PLASTIC, SOIC-28
针数：28Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.23差分输出：NO
接口集成电路类型：SCSI BUS TERMINATORJESD-30 代码：R-PDSO-G28
JESD-609代码：e0长度：17.925 mm
功能数量：1信号线数量：18
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP28,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3.8/5.25 V
标称上拉电阻：110 Ω认证状态：Not Qualified
座面最大高度：2.65 mm子类别：Bus Terminators
最大供电电压：5.25 V最小供电电压：3.8 V
标称供电电压：4.75 V表面贴装：YES
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
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：NOT SPECIFIED
宽度：7.5 mmBase Number Matches：1

MCCS142236DW 数据手册

 浏览型号MCCS142236DW的Datasheet PDF文件第2页浏览型号MCCS142236DW的Datasheet PDF文件第3页浏览型号MCCS142236DW的Datasheet PDF文件第4页浏览型号MCCS142236DW的Datasheet PDF文件第5页浏览型号MCCS142236DW的Datasheet PDF文件第6页浏览型号MCCS142236DW的Datasheet PDF文件第7页 
ON Semiconductort  
MCCS142236  
18-Bit Switchable Active  
SCSI-2 Bus Terminator  
(110Ω)  
18–BIT SWITCHABLE  
ACTIVE SCSI–2  
BUS TERMINATOR  
With Voltage Regulator  
The MCCS142236 is a precision 18–bit switchable active SCSI–2  
bus terminator with an on–board 2.85V regulator. When the  
Disconnect pin is LOW according to the truth table below, the  
MCCS142236 provides 110Ω ±5% precision resistor pull–ups to a  
2.85V reference for termination of 18–bits in a SCSI–2 standard bus  
system interface.  
When the Disconnect pin is HIGH, the device outputs are in the high  
impedance state on all 18 bits. The regulator is also turned off, greatly  
reducing standby power. Even with no Termpwr applied, the outputs  
remain in the high impedance state.  
DW SUFFIX  
28–LEAD WIDE SOIC PACKAGE  
CASE 751F–05  
• Complies With SCSI and SCSI–2 Standards  
• Pin Compatible With UC5601, UC5602 and UC5608  
• For Opposite Disconnect Polarity See ON Semiconductor’s  
MCCS142238  
• 18 Switchable 110Ω Terminating Resistors  
• 4pF Channel Capacitance During Disconnect  
• Fully Supports Active Negation (Sinks Minimum of 220mA)  
• Built–In 2.85V Regulator With Low Dropout Voltage  
• Very Low Supply Current When Resistors Are Disabled (30µA Max)  
• –650mA Source Current  
• Thermal Shutdown Protection  
• Thin Profile Surface Mount Package: 28–Lead SOIC  
The regulator has a guaranteed dropout voltage of less than 900mV, allowing regulation of supply voltages less than 4.0V.  
The MCCS142236 is protected by thermal shutdown. Other features include low disconnect current (30µA), over 220mA of  
active negation current sink capability, and 4pF disconnect capacitance.  
In 8–bit SCSI applications (“A” cable), only one MCCS142236 is needed at each end of the SCSI cable in order to terminate  
the 18 active signal lines. In 16–bit WIDE SCSI applications (“P” cable), either two MCCS142236s, one each of the  
MCCS142236 and MCCS142237, or three MCCS142237s would be needed at each end of the SCSI cable in order to properly  
terminate the 27 active signal lines. The MCCS142237 is a 9–bit version of the MCCS142236.  
For information on “Power Dissipation for Active SCSI Terminators,” refer to ON Semiconductor Application Note  
AN1408/D, available through ON Semiconductor Fax System, or through the ON Semiconductor Literature Distribution  
Center.  
TRUTH TABLE  
Disconnect  
Output  
0
1
Terminated  
Z
Semiconductor Components Industries, LLC, 2001  
1
Publication Order Number:  
August, 2001 – Rev. 4  
MCCS142236/D  
12345678

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