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參數資料
型號: LX5249CDBK
廠商: MICROSEMI CORP
元件分類: 通用總線功能
英文描述: 9 - LINE LVD SCSI TERMINATOR
中文描述: 9-LINE 105 ohm SCSI BUS TERMINATOR, PDSO36
封裝: ROHS COMPLIANT, PLASTIC, TSSOP-36
文件頁數: 1/6頁
文件大小: 170K
代理商: LX5249CDBK
9-L
INE
LVD SCSI T
ERMINATOR
P
R E L I M I N A R Y
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
LX5248/LX5249
D E S C R I P T I O N
K E Y F E AT U R E S
I
2.5pF Typical Disabled Output
Capacitance
I
Fast Response, No External Capacitors
Required
I
5μA Supply Current In Disconnect Mode
I
20mA Supply Current During Normal
Operation
I
Logic Command Disconnects All
Termination Lines
I
Diffsense Line Driver
I
Current Limit And Thermal Protection
I
Compatible With The Pending SPI-2 LVD
Specification
I
Pin Compatible With Industry Standard
Multi-Mode Terminators
I
For UCC5240 Pin Compatible LVD ONLY
Terminator (See LX5245/5246)
P R O D U C T H I G H L I G H T
The LX5248/49 IC is a Low Voltage Dif-
ferential (LVD) Terminator
designed to
comply with the LVD termination specifica-
tion in the SPI-2 document. The LX5248/
49 is designed specifically for LVD applica-
tions. Because the LX5248/49 supports only
LVD, it has lower output capacitance than
multimode terminators such as the LX5240.
The LX5248/49 Utilizes 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 band-
width drivers also maximize channel sepa-
ration and reduces channel-to-channel noise
and cross talk. The high-bandwidth
UltraMAX architecture insures ULTRA-2 per-
formance, while providing a clear migration
path to ULTRA-3 and beyond.
When The LX5248/49 Is Enabled, The
Differential Sense (DIFFSENSE) Pin Sup-
plies 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 LX5248/49 output will be
HiZ. If the DIFFSENSE line is HIGH, indi-
cating a high voltage differential device the
LX5248/49 output will be HiZ.
The LX5248/49 IC Has A TTL Compat-
ible DISCONNECT Pin.
The LX5248/49 is
active LOW. During sleep mode, power
dissipation is reduced to a meager 5μA, 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.
V
(+)
V
(-)
V
C
V
OD
= V
(-)
- V
(+)
, Logic = 0
NEGATED
0V
100mV
-100mV
LX5248/49
LX5248/49
B
U S
V
O L T A G E /
V
O D
UltraMAX
TM
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5249CPWT)
Copyright 200
1
Rev. 0.6 10/00
1
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
L
I N
F
I N I T Y
M
I C R O E L E C T R O N I C S
I
N C
.
NOTE:
For current data & package dimensions, visit our web site:
http://www.linfinity.com.
0 to 70K
LX5249CDBK
LX5249CPWK
LX5248CPW
PA C K A G E O R D E R I N F O R M AT I O N
DB
Plastic SSOP
36-pin
T
A
(°C)
PW
Plastic TSSOP
24-pin
PW
Plastic TSSOP
28-pin
相關PDF資料
PDF描述
LX5250CDB 9-Line Multimode SCSI Terminator
LX5250 9-Line Multimode SCSI Terminator
LX5250CPW 9-Line Multimode SCSI Terminator
LX5252CDB 9-Line Multimode SCSI Terminator
LX5261 27-Line LVD SCSI Source/Sink Regulator
相關代理商/技術參數
參數描述
LX5249CPW 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:SCSI - Low Voltage Differential (LVD)
LX5249CPWK 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATOR
LX5250 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9-Line Multimode SCSI Terminator
LX-5250-16V1C20 制造商:MRV 制造商全稱:MRV 功能描述:5250 Power Control Series
LX-5250-16V1L30 制造商:MRV 制造商全稱:MRV 功能描述:5250 Power Control Series
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