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參數資料
| 型號： | LX5245CPW |
| 廠商： | MICROSEMI CORP |
| 元件分類： | Bus Terminator |
| 英文描述： | 9-LINE 105 ohm SCSI BUS TERMINATOR, PDSO24 |
| 封裝： | ROHS COMPLIANT, PLASTIC, TSSOP-24 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 187K |
| 代理商： | LX5245CPW |
P RE LI MIN A R Y D ATA S HEET
T HE
I NFI N ITE
P O W ER
OF
I N NOVATIO N
L IN F IN IT Y M IC ROEL E C TRON IC S I NC .
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
Copyright
2000
Rev. 0.8a,2005-03-02
UltraMAX
LX5245 / 5246
9-L INE LVD SCSI T ERMINATOR
DESCRI PTI O N
The LX5245/5246 ICs are Low Volt
age
Differential (LVD) Terminators designed to
comply with the LVD termination specification in
the SPI-4 document. The LX5245/5246 are
designed specifically for LVD applications.
Because the LX5245/ 5246 support only LVD,
they have lower output capacitance than
multimode terminators such as the LX5241.
The LX5245/5246 Utilize Linfinity’s UltraMAX
Technology which delivers the ultimate in SCSI
bus performance while saving component cost and
board area. Elimination of the external capacitors
also mitigates the need for a lengthy capacitor
selection process. The individual high bandwidth
drivers also maximize channel separation and
reduces channel-to-channel noise and cross talk.
The high-bandwidth UltraMAX architecture
insures ULTRA-2 performance, while providing a
clear migration path to ULTRA-3 and beyond.
When The LX5245/5246 Are Enabled, The
Differential Sense (DIFFSENSE) Pin Supplies
A Voltage Between 1.2V And 1.4V. In
application, the terminator DIFFSENSE output is
connected to the system DIFFSENSE line. If
there are no single ended or HVD devices
attached to the system the LVD output will be
enabled. If the DIFFSENSE line is LOW,
indicating a single ended device, the LX5245/
5246 output will be HiZ. If the DIFFSENSE line
is HIGH, indicating a high voltage differential
device the LX5245/5246 output will be HiZ.
The LX5245/5246 ICs Have A TTL
Compatible DISCONNECT Pin. The LX5245
is active LOW and the LX5246 is active HIGH.
During sleep mode, power dissipation is reduced
to a meager 5A, while also placing all outputs in
a HI Z state. Also during sleep mode, the
DIFFSENSE function is disabled and is placed in
a HI Z state.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
2.5pF Typical Disabled Output
Capacitance
Fast Response, No External
Capacitors Required
5A Supply Current In
Disconnect Mode
20mA Supply Current During
Normal Operation
Logic Command Disconnects All
Termination Lines
Diffsense Line Driver
Current Limit And Thermal
Protection
Compliant With SPI-2 (Ultra2),
SPI-3 (Ultra160),
Mention 5249 as LVD Only
Terminator With Pinout
Compatible With Industry
Standard Multi-mode
Terminators
Pin Compatible With Unitrode
UCC5640
PRODUCT H I GHLIGHT
V
OD = V(-) - V(+), Logic =0
NEGATED
0V
100mV
-100mV
LX5245/46
V
CM
V
(+)
V
(-)
PACKAGE ORDER INFO
PW
Plastic TSSOP
24-Pin
TA (
°C)
RoHS / Pb-free
Transition DC: 0442
LX5245CPW
0 to 70
LX5246CPW
Note: Available in Tape & Reel. Append the letters “TR” to
the part number. (i.e. LX5245CPW-TR)
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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| LX5249CPW | 9-LINE 105 ohm SCSI BUS TERMINATOR, PDSO24 |
| LX8580A-00CDD | ADJUSTABLE POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO5 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LX5245-CPWT | 制造商:Microsemi Corporation 功能描述:SCSI TERMINATION 3V TO 5.25V 24TSSOP - Tape and Reel |
| LX5246 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5246CPW | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5247 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5247CPW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SCSI - Low Voltage Differential (LVD) |
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