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UCUC5603DPTR PDF预览

UCUC5603DPTR

更新时间: 2024-02-26 18:25:51
品牌 Logo 应用领域
德州仪器 - TI 光电二极管接口集成电路
页数 文件大小 规格书
11页 456K
描述
9-LINE 110ohm SCSI BUS TERMINATOR, PDSO16, PLASTIC, SOIC-16

UCUC5603DPTR 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
差分输出:NO接口集成电路类型:SCSI BUS TERMINATOR
JESD-30 代码:R-PDSO-G16长度:9.9 mm
功能数量:1信号线数量:9
端子数量:16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封装形状:RECTANGULAR
封装形式:SMALL OUTLINE标称上拉电阻:110 Ω
认证状态:Not Qualified座面最大高度:1.75 mm
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端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:3.9 mmBase Number Matches:1

UCUC5603DPTR 数据手册

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SLUS195B − MARCH 1997 − REVISED NOVEMBER 2003  
D
D
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Complies with SCSI, SCSI−2 and SPI−2  
Standards  
D
Logic Command Disconnects all  
Termination Lines  
6-pF Channel Capacitance during  
Disconnect  
D
D
D
D
Trimmed Termination Current to 3%  
Trimmed Impedance to 3%  
100-µA Supply Current in Disconnect Mode  
Meets SCSI Hot Plugging  
Negative Clamping on all Signal Lines  
Current Limit and Thermal Shutdown  
Protection  
−400-mA Sourcing Current for Termination  
+400-mA Sinking Current for Active  
Negation Drivers  
description  
The UC5603 provides 9 lines of active termination for a SCSI (Small Computers Systems Interface) parallel bus.  
The SCSI standard recommends active termination at both ends of the cable segment.  
The UC5603 provides a disconnect feature which, when opened or driven high, will disconnect all terminating  
resistors, and disables the regulator; greatly reducing standby power. The output channels remain high  
impedance even without Termpwr applied. A low channel capacitance of 6 pF allows units at interim points of  
the bus to have little to no effect on the signal integrity.  
Functionally the UC5603 is similar to its predecessor, the UC5601 − 18 line Active Terminator. Several electrical  
enhancements were incorporated in the UC5603, such as a sink/source regulator output stage to accommodate  
all signal lines at 5 V, while the regulator remains at its nominal value, reduced channel capacitance to 6 pF  
typical, and as with the UC5601, custom power packages are utilized to allow normal operation at full power  
conditions (1.2 watts).  
functional block diagram  
UDG-94049  
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.  
ꢎꢡ  
Copyright 2003, Texas Instruments Incorporated  
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