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參數(shù)資料
| 型號： | DS2117M |
| 英文描述： | Ultra3 LVD/SE SCSI Terminator |
| 中文描述： | Ultra2 LVD/SE SCSI端接器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 129K |
| 代理商： | DS2117M |
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090199
FEATURES
Fully compliant with Ultra2, Ultra3, and
Ultra 160/m SCSI
Provides Multimode Low Voltage
Differential/Single-Ended (LVD/SE)
termination for 9 signal line pairs
Auto-selection of LVD or SE termination
5% tolerance on SE and LVD termination
resistance
Low power down capacitance of 3 pF
Onboard thermal shutdown circuitry
SCSI bus hot plug compatible
Fully supports actively negated SE SCSI
signals
PIN ASSIGNMENT
DESCRIPTION
The DS2117M Ultra3 LVD/SE SCSI Terminator is both a Low Voltage Differential (LVD) and Single-
Ended (SE) terminator. The multimode operation enables the designer to implement LVD in current
products while allowing the end-user SE backward compatibility with legacy devices. If the device is
connected in an LVD-only bus, the DS2117M will use LVD termination. If any SE devices are connected
to the bus, the DS2117M will use SE termination. This is accomplished automatically inside the part by
sensing the voltage on the SCSI bus DIFFSENS line.
For the LVD termination, the DS2117M integrates two current sources with nine precision resistor
strings. For the SE termination, one regulator and nine precision 110-ohm resistors are used. Three
DS2117M terminators are needed for a wide SCSI bus.
DS2117M
Ultra3 LVD/SE SCSI Terminator
www.dalsemi.com
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25
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35
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LVD
SE
R9N
R9P
R8N
R8P
HS GND
HS GND
HS GND
R7N
R7P
R6N
R6P
NC
R1P
R1N
R2P
R2N
HS GND
HS GND
R3P
R3N
R4P
R4N
R5P
R5N
ISO
GND
DS2117MB 36-Pin SSOP
36
VREF
NC
TPWR
HVD
HS GND
1
2
3
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5
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9
10
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16
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18
DIFF_CAP
DIFFSENSE
MSTR/SLV
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2117MB | 功能描述:IC TERM SCSI LVD/SE ULT-3 36SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 信號終端器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:SCSI，SE 端子數(shù):9 電源電壓:4 V ~ 5.25 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| DS2117MB/T&R | 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 36SSOP |
| DS2117MB/T&R | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS2117MB/T&R/ | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS2117MX/T&R | 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 FCHIP |
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