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DS2105S PDF预览

DS2105S

更新时间: 2024-11-29 13:07:27
品牌 Logo 应用领域
达拉斯 - DALLAS /
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

DS2105S 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:0.300 INCH, PLASTIC, SOIC-16Reach Compliance Code:unknown
风险等级:5.5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
封装等效代码:SOP16,.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:5 V标称上拉电阻:110 Ω
认证状态:Not Qualified子类别:Bus Terminators
最大压摆率:250 mA最大供电电压:5.25 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 (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 SPECIFIEDBase Number Matches:1

DS2105S 数据手册

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DS2105  
DS2105  
SCSI Terminator  
FEATURES  
PIN ASSIGNMENT  
Fully compliant with SCSI–1, Fast SCSI and Ultra  
TERMPWR1  
PD  
1
2
3
4
16  
15  
14  
SCSI  
VREF2  
R1  
R2  
R3  
R9  
R8  
Functionally compatible to the DS21S07A, targeted  
for high volume applications  
13  
12  
R7  
R6  
5
R4  
R5  
Provides active termination for nine signal lines  
11  
6
7
8
VREF1  
GND  
NC  
Laser–trimmed 110 ohm termination resistors have  
5% tolerance  
10  
9
TERMPWR2  
DS2105Z 16–PIN SOIC (150 MIL)  
Low dropout voltage  
TERMPWR1  
PD  
1
2
3
4
Power–down mode isolates termination resistors  
16  
15  
14  
VREF2  
NC  
from the bus  
R1  
R2  
R3  
Fully supports actively negated SCSI signals  
Onboard thermal shutdown circuitry  
16–pin plastic SOIC (DS2105)  
R9  
13  
12  
R8  
R7  
5
R4  
R5  
11  
6
7
8
VREF1  
GND  
R6  
10  
9
TERMPWR2  
DS2105S 16–PIN SOIC (300 MIL)  
DESCRIPTION  
Fast SCSI and Ultra SCSI require the use of active ter-  
minations at both ends of every cable segment in a  
SCSI system with single–ended drivers and receivers.  
The DS2105 SCSI Terminator, which is fully compliant  
with these standards, enables the designer to gain the  
benefits of active termination: greater immunity to volt-  
age drops on the TERMPWR (TERMination PoWeR)  
line, enhanced high–level noise immunity, intrinsic  
TERMPWR decoupling, and very low quiescent current  
consumption. The DS2105, which integrates a regula-  
tor and nine precise switched 110 ohm termination re-  
sistors into a monolithic IC, is a functionally compatible  
version of the DS21S07A. With relaxed output current  
and termination tolerances, the DS2105 is intended for  
high volume applications which require active termina-  
tion but not the high performance of the DS21S07A.  
The DS2105 is offered in both 300 mil and 150 mil SOIC  
packages.  
022698 1/7  

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