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參數(shù)資料
| 型號： | G218B |
| 英文描述： | Multi-mode SCSI terminator (Ultra 2 / Ultra 160).|Terminator Series |
| 中文描述： | 多模式的SCSI終結器（超2 /超160）。|終結者系列 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 231K |
| 代理商： | G218B |
Ver 1.3
Jul 19, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G218B
Global Mixed-mode Technology Inc.
Ultra160 Multi-mode LVD/SE SCSI Terminator
Features
Auto-selectable multi-mode Single-Ended
or LVD Termination
Meets SCSI-1, SCSI-2, SCSI-3 SPI Ultra
(Fast-20), Ultra 2(SPI-2 LVD), Ultra160 (SPI-3
LVD) standards.
Supports active negation
3pF channel capacitance
Thermal protection
Hot-Swap compatible
5% tolerance on SE and LVD termination
resistance
28 and 36 pin SSOP package
28 Pin SSOP: Pin Compatible with DS2119
36 Pin SSOP: Pin Compatible with DS2118,
LX5241 and UCC5630
Applications
Server and workstation
High-end PC
Industrial PC
Disk Array (RAID)
SCSI cable
Pin Configuration
General Description
The G218B Multi-mode LVD/SE SCSI terminator pro-
vides a smooth transition into the next generation of
the SCSI Parallel Interface (SPI-3). It automatically
senses the bus, via DIFFSENS, and switches the ter-
mination to either single-ended (SE) or low voltage
differential (LVD) SCSI, dependent on which type of
devices are connected to the bus. If the G218B de-
tects a HVD SCSI device, it switches to a high imped-
ance state. For a 16-bit Wide SCSI bus to be opera-
tional, three G218B terminators are needed.
The Multi-mode terminator contains all functions re-
quired to terminate and auto detect and switch modes
for SCSI Parallel Interface (SPI) bus architectures. For
the SE termination, one regulator and nine precision
110ohm resistors are used. For the LVD termination,
the G218B integrates 18 regulated supplies with nine
precision resistor strings.
R1-
R1+
R2-
NC/HS GND
R3-
R4+
R4-
R5+
R5-
DISCNCT
GND
TPWR
R9-
R9+
R8+
R8-
R7-
R6-
DIFFB
DIFFSENSE
M/S
28Pin SSOP/TSSOP
VREF
R2+
TPWR
R7+
G218B
1
2
3
4
28
27
26
25
5
6
7
8
9
10
11
12
13
14
24
23
22
21
20
19
18
17
16
15
NC/HS GND
NC
R1+
R1-
R2-
HS/GND
HS/GND
R3+
R3-
R4+
R4-
R5+
R5-
DISCNCT
GND
LVD
SE
R9-
R9+
R8-
HS/GND
HS/GND
HS/GND
R7-
R7+
R6-
DIFFB
DIFFSENSE
M/S
VREF
R2+
HS/GND
36Pin SSOP
G218B
1
2
3
5
28
27
25
6
7
9
10
11
12
14
24
23
22
21
20
19
16
17
15
18
33
32
31
30
29
36
35
34
R3+
R6+
TPWR
HVD
R8+
R6+
4
26
8
13
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| G218BR-D3 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Ultra160 Multi-mode LVD/SE SCSI Terminator |
| G218BR-D3F | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Ultra160 Multi-mode LVD/SE SCSI Terminator |
| G218BR-S4 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Ultra160 Multi-mode LVD/SE SCSI Terminator |
| G218BR-S4F | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Ultra160 Multi-mode LVD/SE SCSI Terminator |
| G218BR-S5 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Ultra160 Multi-mode LVD/SE SCSI Terminator |
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