5秒后页面跳转
DS2108S PDF预览

DS2108S

更新时间: 2024-11-23 22:50:47
品牌 Logo 应用领域
达拉斯 - DALLAS /
页数 文件大小 规格书
5页 71K
描述
Differential SCSI Switchable Terminator

DS2108S 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:0.300 INCH, PLASTIC, SOIC-24Reach Compliance Code:unknown
风险等级:5.66差分输出:YES
接口集成电路类型:SCSI BUS TERMINATORJESD-30 代码:R-PDSO-G24
JESD-609代码:e0功能数量:1
信号线数量:18端子数量:24
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:SOP24,.3封装形状:RECTANGULAR
封装形式:SMALL OUTLINE电源:5 V
标称上拉电阻:330 Ω认证状态:Not Qualified
子类别:Bus Terminators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技术:MOS
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:DUALBase Number Matches:1

DS2108S 数据手册

 浏览型号DS2108S的Datasheet PDF文件第2页浏览型号DS2108S的Datasheet PDF文件第3页浏览型号DS2108S的Datasheet PDF文件第4页浏览型号DS2108S的Datasheet PDF文件第5页 
DS2108  
Differential SCSI Switchable Terminator  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Fully compliant with SCSI, SCSI-2 and SCSI-  
3 standards  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
TPWR  
R1N  
PD  
Conforms to EIA RS-485 standard  
Provides differential termination for 9 pairs of  
signal lines  
Operates with SCSI signal voltages of -7 to  
+12 Volts  
Laser-trimmed 330 and 150-ohm termination  
resistors have ±5% tolerance over full  
temperature range  
Switchable power-down mode  
Low power down capacitance of 6 pF  
24-pin plastic SOIC (DS2108S)  
GND  
R1P  
R2P  
3
R2N  
R3N  
4
5
6
7
8
R4N  
R5N  
R6N  
R7N  
R8N  
R9N  
TPWR  
NC  
R3P  
R4P  
R5P  
R6P  
R7P  
R8P  
R9P  
GND  
9
10  
11  
12  
DS2108S 24-Pin SOIC (300-mil)  
DESCRIPTION  
The DS2108 SCSI Terminator has been specifically designed for High Voltage Differential (HVD) SCSI  
systems requiring switchable termination. The DS2108 integrates eighteen 330-ohm and nine 150-ohm  
precise switched termination resistors into a monolithic IC. The surface mount SOIC package saves board  
space over conventional resistor SIPs. The termination resistors can be isolated from the SCSI bus under  
software or hardware control. While in the powered down mode, the DS2108 isolates the nine terminator  
blocks from the bus while adding only 6 pF capacitance to each signal line of the SCSI bus.  
FUNCTIONAL DESCRIPTION  
The DS2108 consists of power-down circuitry, eighteen 330-ohm and nine 150-ohm termination resistors  
(Figure 1). The DS2108 can be removed from the circuit by bringing the power down pin (PD) low. The  
power down capacitance on the terminating resistors is 6 pF, well below the SCSI-3 allotment of 25 pF.  
The DS2108 supports SCSI signal voltages of -7 to +12 volts when powered on or off. When all lines  
settle into the quiescent state (no signal transitions), 56 mA is typically consumed. Only 1 mA is  
typically consumed in the powered down mode.  
1 of 5  
112099  

与DS2108S相关器件

型号 品牌 获取价格 描述 数据表
DS2108S/T&R MAXIM

获取价格

SCSI Terminator, 9-Line, 330ohm, PDSO24, 0.300 INCH, PLASTIC, SOIC-24
DS2108S+ MAXIM

获取价格

SCSI Terminator, 9-Line, 330ohm, PDSO24, 0.300 INCH, PLASTIC, SOIC-24
DS2108S+ ROCHESTER

获取价格

9-LINE 330 ohm SCSI BUS TERMINATOR, PDSO24, 0.300 INCH, PLASTIC, SOIC-24
DS2108S+T&R MAXIM

获取价格

SCSI Terminator, 18-Line, 330ohm, PDSO24, 0.300 INCH, PLASTIC, SOIC-24
DS2109 DALLAS

获取价格

Plug and Play SCSI Terminator
DS2109DK ETC

获取价格

Demo Board
DS2109S DALLAS

获取价格

Plug and Play SCSI Terminator
DS2109S/T&R MAXIM

获取价格

SCSI Terminator, 18-Line, 110ohm, PDSO28, 0.300 INCH, SOIC-28
DS210W RECTRON

获取价格

Reverse Voltage Vr : 100 V;Forward Current Io : 2.0 A;Max Surge Current : 40 A;Forward Vol
DS210W-W-A02 RECTRON

获取价格

Reverse Voltage Vr : 100 V;Forward Current Io : 2.0 A;Max Surge Current : 50 A;Forward Vol