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參數(shù)資料
| 型號： | LX5251 |
| 廠商： | Microsemi Corporation |
| 英文描述： | 9-Line Multimode SCSI Terminator |
| 中文描述： | 9線多模的SCSI終結(jié)者 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 173K |
| 代理商： | LX5251 |
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2002
Rev. 1.1, 2006-02-27
W
M
.
C
LX5251
9-Line Multimode SCSI Terminator
P
RODUCTION DATA SHEET
TM
D E S C R I P T I O N
The LX5251 is a multimode SCSI
terminator that is compatible with the
SCSI SPI-2 (Ultra2), SCSI SPI-3 (Ultra3
or Ultra160), and SCSI SPI-4 (Ultra320)
specifications developed by the T10
standards committee for low voltage
differential (LVD) termination, while
providing backwards compatibility to the
SCSI, SCSI-2, and SPI single-ended
specifications. Multimode compatibility
permits the use of legacy devices on the
bus
without
hardware
Automatic mode selection is achieved
through
voltage
detection
Diffsense line.
The LX5251 utilizes an industry
standard
LVD
individual
high
bandwidth
maximize channel separation, reduce
channel-to-channel noise and cross talk
to insure Ultra320 performance.
When the LX5251 is enabled, the
differential sense (DIFFSENSE) pin
supplies a voltage between 1.2V and
1.4V. In
alterations.
on
the
architecture.
The
drivers
application, this pin is tied to the DIFFSENSE
input of the corresponding LVD transceivers.
This action enables the LVD transceiver
function. DIFFSENSE is capable of supplying
a maximum of 15mA.
Tying the DIFFSENSE pin high places the
LX5251 in a HI-Z state indicating the presence
of an HVD device. Tying the pin low places
the part in a single-ended mode while also
signaling the multimode transceiver to operate
in a single-ended mode.
Recognizing the needs of portable and
configurable peripherals, the LX5251 has a
TTL compatible sleep/disable mode. During
this sleep/disable mode, power dissipation is
reduced to a meager 15uA while also placing
all outputs in a HI-Z state. Also during
sleep/disable mode, the DIFFSENSE function
is disabled and is placed in a HI-Z state.
The LX5251 also provides a master / slave
function. Driving this pin high or floating the
pin enables the 1.3V DIFFSENSE reference.
Driving the pin low disables the on board
DIFFSENSE reference and enables use of an
external master reference device.
IMPORTANT:
For the most current data, consult
MICROSEMI
’s website:
http://www.microsemi.com
K E Y F E A T U R E S
Compliant with SCSI SPI-2
(Ultra2), SPI-3 (Ultra160), and
SPI-4 (Ultra320)
Auto-Selectable LVD or Single-
Ended Termination
Fast Response, No Output
Capacitors Required
Compatible with Active Negation
Drivers
15μA Supply Current in
Disconnect Mode
Logic Command Disconnects All
Termination Lines
Diffsense Line Driver
Ground Driver Integrated for
Single-Ended Operation
Current Limit and Thermal
Protection
Hot-Swap Compatible (Single-
Ended)
Available in 24-pin TSSOP
Package
P R O D U C T H I G H L I G H T
LX5251
LX5251
+
-
+
-
PACK AGE ORDER INFO
PW
24-Pin
T
A
(
°
C)
RoHS Compliant / Pb-free
Transition DC: 0442
0 to 70
Note: Available in Tape & Reel.Append the letters “TR” to the
part number. (i.e. LX5251CPW-TR)
Plastic TSSOP
LX5251CPW
L
X
5
2
5
1
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| LX5251CPW | 功能描述:IC TERM SCSI 9LINE MODE 24TSSOP RoHS:是 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 |
| LX5252CDB | 制造商:Microsemi Corporation 功能描述:SCSI - MULTI-MODE - Bulk |
| LX5255 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9-Line LVD SCSI Terminator |
| LX5255_06 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9-Line LVD SCSI Terminator |
| LX5255CPW | 功能描述:IC TERM SCSI 9LINE LVD 24TSSOP 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 |
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