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參數(shù)資料
| 型號： | DS2118M |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Ultra2 LVD/SE SCSI Terminator(Ultra2 LVD/SE SCSI終端) |
| 中文描述： | 9-LINE SCSI BUS TERMINATOR, PDSO36 |
| 封裝： | SSOP-36 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 122K |
| 代理商： | DS2118M |
DS2118M
Ultra2 LVD/SE SCSI Terminator
DS2118M
PRELIMINARY
022698 1/8
FEATURES
Fully compliant with Ultra2 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
DS2118MB 36–PIN SSOP
1
2
3
4
5
6
7
8
VREF
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
NC
NC
R1P
R1N
R2P
R2N
HS GND
HS GND
HS GND
R3P
R3N
R4P
R4N
R5P
R5N
ISO
GND
TPWR
HVD
LVD
SE
R9N
R9P
R8N
R8P
HS GND
HS GND
HS GND
R7N
R7P
R6N
R6P
DIFF_CAP
DIFFSENSE
MSTR/SLV
DESCRIPTION
The DS2118M Ultra2 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 DS2118M will use LVD termination. If any
SE devices are connected to the bus, the DS2118M 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 DS2118M integrates two
regulated supplies with nine precision resistor strings.
For the SE termination, one regulator and nine precision
110 ohm resistors are used. Three DS2118M termina-
tors are needed for a Wide SCSI bus.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2118MB | 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 |
| DS2118MB/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 36SSOP |
| DS2118MB/T&R | 功能描述:SCSI 接口集成電路 Ultra3 LVD/SE SCSI Terminator 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 |
| DS2118MB/T,R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Ultra3 LVD/SE SCSI Terminator |
| DS2118MB+ | 功能描述:SCSI 接口集成電路 Ultra3 LVD/SE SCSI Terminator 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 |
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