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UCC5641PW24TRG4 PDF预览

UCC5641PW24TRG4

更新时间： 2024-11-08 15:55:55
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
5页 73K
描述
IC,TERMINATOR,TSSOP,14PIN,PLASTIC

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中文翻译

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UCC5641PW24TRG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP14,.25Reach Compliance Code：unknown
风险等级：5.84JESD-30 代码：R-PDSO-G14
长度：5 mm端子数量：14
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：TSSOP
封装等效代码：TSSOP14,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH电源：3.3 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Bus Terminators标称供电电压：3.3 V
表面贴装：YES温度等级：COMMERCIAL
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL宽度：4.4 mm
Base Number Matches：1

UCC5641PW24TRG4 数据手册

 浏览型号UCC5641PW24TRG4的Datasheet PDF文件第2页浏览型号UCC5641PW24TRG4的Datasheet PDF文件第3页浏览型号UCC5641PW24TRG4的Datasheet PDF文件第4页浏览型号UCC5641PW24TRG4的Datasheet PDF文件第5页 
UCC5641  
Low Voltage Differential (LVD) SCSI 9 Line Terminator  
FEATURES  
DESCRIPTION  
• First LVD only Active Terminator  
The UCC5641 is an active terminator for Low Voltage Differential (LVD)  
SCSI networks. This LVD only design allows the user to reach peak bus  
performance while reducing system cost. The device is designed as an  
active Y-terminator to improve the frequency response of the LVD Bus.  
Designed with a 1.5pF channel capacitance, the UCC5641 allows for mini-  
mal bus loading for a maximum number of peripherals. With the  
UCC5641, the designer will be able to comply with the Fast-40 SPI-2 and  
Fast-80 SPI-3 specifications. The UCC5641 also provides a much-needed  
system migration path for ever improving SCSI system standards. This de-  
vice is available in the 24 pin TSSOP and 28 pin TSSOP for ease of lay-  
out use.  
• Meets SCSI SPI-2 Ultra2 (Fast-40)  
and Ultra3 / Ultra160 (Fast-80)  
Standards  
• 2.7V to 5.25V Operation  
• Differential Failsafe Bias  
• Reversed Disconnect Polarity  
The UCC5641 is not designed for use in single ended or high voltage dif-  
ferential systems.  
BLOCK DIAGRAM  
SOURCE ONLY FROM TRMPWR AND THE ENABLED TERMINATIONS  
OPEN CIRCUIT ON POWER OFF  
OR OPEN CIRCUIT IN A  
DISABLED TERMINATOR MODE  
SOURCE 5–15mA  
SINK 200µA MAXIMUM (NOISE LOAD)  
TRMPWR 28  
2.7V to 5.25V  
REF 1.3V  
12  
DIFSENS  
1.3V 0.1V  
HIGH POWER  
DIFFERENTIAL  
2.4V > 1.9V  
DIFFB  
11  
20k  
27 LVD*  
HIGH IMPEDANCE RECEIVER  
EVEN WITH POWER OFF  
0.1µF  
0.7V > 0.5V  
SINGLE  
ENDED  
SOURCE/SINK REGULATOR  
REF 1.25V  
124  
124  
56mV  
52  
52  
LOW  
FREQUENCY  
FILTER  
–
+
L1–  
L1+  
4
3
56mV  
50Hz – 60Hz  
+
–
10µA  
56mV  
52  
52  
–
+
26 L9–  
25 L9+  
DISCNCT 15  
56mV  
+
–
GND  
REG  
14  
1
4.7µF  
UDG-99160  
* 28 pin package only  
SLUS397 - JANUARY 2000  
12345

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