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DS21T05S/T&R PDF预览

DS21T05S/T&R

更新时间: 2024-10-28 14:49:11
品牌 Logo 应用领域
美信 - MAXIM 光电二极管接口集成电路
页数 文件大小 规格书
7页 103K
描述
SCSI Terminator, 9-Line, 110ohm, PDSO16, 0.300 INCH, PLASTIC, SOIC-16

DS21T05S/T&R 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:SOP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.4差分输出:NO
接口集成电路类型:SCSI BUS TERMINATORJESD-30 代码:R-PDSO-G16
JESD-609代码:e0长度:10.3 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峰值回流温度(摄氏度):245
标称上拉电阻:110 Ω认证状态:Not Qualified
座面最大高度:2.65 mm最大供电电压:5.5 V
最小供电电压:4 V标称供电电压:5 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:TIN LEAD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

DS21T05S/T&R 数据手册

 浏览型号DS21T05S/T&R的Datasheet PDF文件第2页浏览型号DS21T05S/T&R的Datasheet PDF文件第3页浏览型号DS21T05S/T&R的Datasheet PDF文件第4页浏览型号DS21T05S/T&R的Datasheet PDF文件第5页浏览型号DS21T05S/T&R的Datasheet PDF文件第6页浏览型号DS21T05S/T&R的Datasheet PDF文件第7页 
DS21T05  
SCSI Terminator  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Fully compliant with SCSI-1, Fast SCSI and  
Ultra SCSI  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
TERMPWR1  
PD  
VREF2  
R9  
R8  
R7  
R6  
Functionally compatible to the DS21T07,  
targeted for high volume applications  
Provides active termination for nine signal  
lines  
Laser-trimmed 110-ohm termination resistors  
have 5% tolerance  
Low dropout voltage  
Power-down mode isolates termination  
resistors from the bus  
SCSI bus hot-plug compatible  
Fully supports actively negated SCSI signals  
Onboard thermal shutdown circuitry  
16-pin plastic narrow SOIC  
R1  
R2  
R3  
R4  
R5  
VREF1  
GND  
NC  
TERMPWR2  
DS21T05Z 16-Pin SOIC (150-mil)  
TERMPWR1  
PD  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
R1  
R2  
VREF2  
NC  
R9  
R3  
R4  
R8  
R5  
R7  
VREF1  
GND  
R6  
TERMPWR2  
DS21T05S 16-Pin SOIC (300-mil)  
DESCRIPTION  
Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in a  
SCSI system with single-ended drivers and receivers. The DS21T05 SCSI Terminator, which is fully  
compliant with these standards, enables the designer to gain the benefits of active termination: greater  
immunity to voltage drops on the TERMPWR (TERMination PoWeR) line, enhanced high-level noise  
immunity, intrinsic TERMPWR decoupling, and very low quiescent current consumption. The DS21T05,  
which integrates a regulator and nine precise-switched, 110-ohm termination resistors into a monolithic  
IC, is a functionally compatible version of the DS21T07. With relaxed output current and termination  
tolerances, the DS21T05 is intended for high volume applications which require active termination but  
not the high performance of the DS21T07.  
FUNCTIONAL DESCRIPTION  
The DS21T05 consists of a bandgap reference, buffer amplifier, and nine termination resistors (Figure 1).  
The bandgap reference circuit produces a precise 2.55V level which is fed to a buffer amplifier. The  
buffer produces a 2.85V level and is capable of sourcing at least 24 mA into each of the termination  
resistors when the signal line is low (active). When the driver for a given signal line turns off, the  
terminator will pull the signal line to 2.85V (quiescent state). To handle actively negated SCSI signals,  
1 of 7  
112099  

DS21T05S/T&R 替代型号

型号 品牌 替代类型 描述 数据表
DS21T05Z+T&R MAXIM

完全替代

SCSI Terminator, 9-Line, 110ohm, PDSO16, 0.150 INCH, PLASTIC, SOIC-16
DS21S07AS/T&R MAXIM

完全替代

SCSI Terminator, 9-Line, 110ohm, PDSO16, 0.300 INCH, PLASTIC, SOIC-16
DS21S07AS MAXIM

完全替代

SCSI Terminator

与DS21T05S/T&R相关器件

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DS21T05Z+T&R MAXIM

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DS21T07E MAXIM

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SCSI Terminator, 9-Line, 110ohm, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
DS21T07E ROCHESTER

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9-LINE 110 ohm SCSI BUS TERMINATOR, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
DS21T07E/T&R MAXIM

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SCSI Terminator, 9-Line, 110ohm, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
DS21T07E+ MAXIM

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SCSI Terminator, 9-Line, 110ohm, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20