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Numéro de référence | LX5248 | ||
Description | 9 - LINE LVD SCSI TERMINATOR | ||
Fabricant | Microsemi Corporation | ||
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1 Page
THE INFINITE POWER OF INNOVATION
UltraMAX™
LX5248 / LX5249
9-LINE LVD SCSI TERMINATOR
PRELIMINARY DATA SHEET
DESCRIPTION
The LX5248/49 IC is a Low Voltage When The LX5248/49 Is Enabled, The
Differential (LVD) Terminator designed to Differential Sense (DIFFSENSE) Pin Supplies
comply with the LVD termination specification in A Voltage Between 1.2V And 1.4V.
the SPI-2 document. The LX5248/ 49 is designed In application, the terminator DIFFSENSE output
specifically for LVD applications. Because the is connected to the system DIFFSENSE line. If
LX5248/49 supports only LVD, it has lower there are no single ended or HVD devices
output capacitance than multimode terminators attached to the system the LVD output will be
such as the LX5240.
enabled. If the DIFFSENSE line is LOW,
The LX5248/49 Utilizes Linfinity’s UltraMAX indicating a single ended device, the LX5248/49
Technology which delivers the ultimate in SCSI output will be HiZ. If the DIFFSENSE line is
bus performance while saving component cost and HIGH, indicating a high voltage differential
board area. Elimination of the external capacitors device the LX5248/49 output will be HiZ.
also mitigates the need for a lengthy capacitor The LX5248/49 IC Has A TTL Compatible
selection process. The individual high bandwidth DISCONNECT Pin. The LX5248/49 is active
drivers also maximize channel separation and LOW. During sleep mode, power dissipation is
reduces channel-to-channel noise and cross talk. reduced to a meager 5µA, while also placing all
The high-bandwidth UltraMAX architecture outputs in a HI Z state. Also during sleep mode,
insures ULTRA-2 performance, while providing a the DIFFSENSE function is disabled and is
clear migration path to ULTRA-3 and beyond. placed in a HI Z state.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATURES
2.5pF Typical Disabled Output
Capacitance
Fast Response, No External
Capacitors Required
5µA 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 SP1-2 (Ultra2)
and SP1-3 (Ultra 160)
Pin Compatible With Industry
Standard Multi-Mode
Terminators
For UCC5240 Pin Compatible
LVD ONLY Terminator (See
LX5245/5246)
Bus Voltage
V(+)
V(-)
PRODUCT HIGHLIGHT
100mV
0V
-100mV
VOD
VOD = V(-) - V(+), Logic = 0
NEGATED
LX5248/49
LX5248/49
Copyright © 2001
Rev. 0.6b,2005-08-29
TA (°C)
0 to 70
PACKAGE ORDER INFO
Plastic TSSOP
Plastic TSSOP
DB 36-Pin
PW 24-Pin
RoHS Compliant / Pb-free
Transition DC: 0535
RoHS Compliant / Pb-free
Transition DC: 0442
LX5249CDBK
LX5249CPW
Plastic TSSOP
PW 28-Pin
RoHS Compliant / Pb-free
Transition DC: 0518
LX5248CPW
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX5249CDBK-TR)
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
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Pages | Pages 6 | ||
Télécharger | [ LX5248 ] |
No | Description détaillée | Fabricant |
LX5240 | MULTIMODE/ PLUG AND PLAY SCSI TERMINATOR | Microsemi Corporation |
LX5241 | MULTIMODE SCSI TERMINATOR | Microsemi Corporation |
LX5242 | MULTIMODE SCSI TERMINATOR | Microsemi Corporation |
LX5243 | MULTIMODE SCSI TERMINATOR | Microsemi Corporation |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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