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UCC5611DWPG4 PDF预览

UCC5611DWPG4

更新时间： 2024-11-08 15:55:55
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理光电二极管接口集成电路
页数 文件大小 规格书
6页 175K
描述
Lowest Capacitance 18-Line 3-5V SE Terminator for SCSI Through Ultra SCSI with Reverse Disconnect 28-SOIC 0 to 70

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中文翻译

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UCC5611DWPG4 技术参数

是否无铅：含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：GREEN, PLASTIC, SOIC-28针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.79
Is Samacsys：N差分输出：NO
接口集成电路类型：SCSI BUS TERMINATORJESD-30 代码：R-PDSO-G28
长度：17.905 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：3/5 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：2.75 V标称供电电压：3.3 V
表面贴装：YES技术：BICMOS
温度等级：COMMERCIAL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 mm
Base Number Matches：1

UCC5611DWPG4 数据手册

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SLUS348A – MARCH 1997 – REVISED NOVEMBER 2000  
D
Complies with SPI-2 and SPI-3 Standards  
2.75-V to 7-V Operation  
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–650-mA Sourcing Current for Termination  
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+400-mA Sinking Current for Active  
Negation Drivers  
1.8-pF Channel Capacitance during  
Disconnect  
Trimmed Termination Current to 4%  
Trimmed Impedance to 7%  
D
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1-µA Supply Current in Disconnect Mode  
110-Ω/2.5-k Programmable Termination  
Completely Meets SCSI Hot Plugging  
Current Limit and Thermal Shutdown  
Protection  
description  
The UCC5611 provides 18 lines of active termination for a SCSI (Small Computer Systems Interface) parallel  
bus. The SCSI standard recommends active termination at both ends of the cable segment.  
The UCC5611 is ideal for high performance 3.3-V SCSI systems. The key features contributing to such  
low-operating voltage are the 0.1-V drop-out regulator and the 2.75-V reference. During disconnect the supply  
current is typically only 1 µA, which makes the IC attractive for battery powered systems.  
The UCC5611 is designed with an ultra-low channel capacitance of 1.8 pF, which eliminates effects on signal  
integrity from disconnected terminators at interim points on the bus.  
The UCC5611 can be programmed for either a 110-Ω or 2.5-kΩ termination. The 110-Ω termination is used for  
standard SCSI bus lengths and the 2.5-kΩ termination is typically used in short bus applications. When driving  
the TTL compatible DISCNCT pin directly, the 110-Ω termination is connected when the DISCNCT pin is driven  
high, and disconnected when low. When the DISCNCT pin is driven through an impedance between 80 kΩ and  
150 kΩ, the 2.5-kΩ termination is connected when the DISCNCT pin is driven high, and disconnected when  
driven low.  
block diagram  
UDG-94131-1  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 2000, Texas Instruments Incorporated  
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
123456

中文翻译

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UCC5611DWPG4 替代型号

型号 品牌 替代类型 描述 数据表
UCC5610DWPTR TI

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UCC5610DWPTRG4 TI

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 Lowest Capacitance 18-Line 3-5V SE Terminator for SCSI Through Ultra SCSI 28-SOIC 0 to 70
UCC5610DWPG4 TI

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 Lowest Capacitance 18-Line 3-5V SE Terminator for SCSI Through Ultra SCSI 28-SOIC 0 to 70

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