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LX5243CPWT

Description
SCSI Terminator, 9-Line, BICMOS, PDSO28, PLASTIC, TSSOP-28
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size173KB,7 Pages
ManufacturerLinfinity Microelectronics
Download Datasheet Parametric Compare View All

LX5243CPWT Overview

SCSI Terminator, 9-Line, BICMOS, PDSO28, PLASTIC, TSSOP-28

LX5243CPWT Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerLinfinity Microelectronics
package instructionPLASTIC, TSSOP-28
Reach Compliance Codeunknow
Differential outputYES
Interface integrated circuit typeSCSI BUS TERMINATOR
JESD-30 codeR-PDSO-G28
JESD-609 codee0
Number of functions1
Number of signal lines9
Number of terminals28
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP28,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
power supply4.75 V
Certification statusNot Qualified
Maximum supply voltage5.25 V
Nominal supply voltage4.75 V
surface mountYES
technologyBICMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
UltraMAX
T
H E
TM
LX5241/5242/5243
D
A T A
M
U LT I M O D E
S C S I T
E R M I N AT O R
I
N F I N I T E
P
O W E R
O F
I
N N O VA T I O N
P
R O D U C T I O N
S
H E E T
DESCRIPTION
The LX5241/42/43 is a multimode SCSI terminator
that conforms to the SCSI Parallel Interconnect-
2 (SPI-2) specification 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 alterations. Automatic mode
selection is achieved through voltage detection
on the diffsense line.
The LX5241/42/43 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
bandwidth drivers also maximize channel sepa-
ration and reduce channel to channel noise and
cross talk. The high bandwidth architecture
insures ULTRA2 performance while providing a
clear migration path to ULTRA3 and beyond.
When the LX5241/42/43 is enabled, the dif-
ferential sense (DIFFSENSE) pin supplies a
voltage between 1.2V and 1.4V. In 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 LX5241/42/43 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 LX5241/42/43
have a TTL compatible sleep/disable mode.
During this sleep/disable mode, power dissipa-
tion is reduced to a meager 15µA 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.
Another key feature of the LX5241/42/43 is
the 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.
K E Y F E AT U R E S
s
Auto-Selectable LVD or
Single-Ended Termination
s
3.0pF Maximum Disabled Output
Capacitance
s
Fast Response, No External Capacitors
Required
s
Compatible with Active Negation Drivers
s
15µA Supply Current in Disconnect
Mode
s
Logic Command Disconnects All
Termination Lines
s
Diffsense Line Driver
s
Ground Driver Integrated for Single-
Ended Operation
s
Current Limit and Thermal Protection
s
Hot-Swap Compatible
(Single-Ended)
s
Compatible with SCSI 1, 2, 3, Fast-20,
and the Pending SPI-2 LVD
s
See LX5245/5246 for LVD
Termination Only
s
Pin Compatible With DS2119 and
UCC5630
NOTE:
For current data & package dimensions, visit our web site:
http://www.linfinity.com.
PRODUCT HIGHLIGHT
B
U S
V
O LTA G E
V
OD
V
OD
= V
(-)
- V
(+)
, Logic = 0
V
(+)
100mV
0V
NEGATED
V
CM
V
(-)
-100mV
LX5241
LX5241
PA C K A G E O R D E R I N F O R M AT I O N
T
A
(°C)
0 to 70
DB
Plastic SSOP
36-pin
LX5241CDB
LX5242CDB
PW
Plastic TSSOP
24-pin
LX5241CPW
LX5242CPW
PW
Plastic TSSOP
28-pin
LX5243CPW
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5241CDBT)
Copyright © 2000
Rev. 1.2 2/00
L
IN
F
INITY
M
ICROELECTRONICS
I
NC
.
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
1

LX5243CPWT Related Products

LX5243CPWT LX5243CPW
Description SCSI Terminator, 9-Line, BICMOS, PDSO28, PLASTIC, TSSOP-28 SCSI Terminator, 9-Line, BICMOS, PDSO28, PLASTIC, TSSOP-28
Is it Rohs certified? incompatible incompatible
Maker Linfinity Microelectronics Linfinity Microelectronics
package instruction PLASTIC, TSSOP-28 PLASTIC, TSSOP-28
Reach Compliance Code unknow unknown
Differential output YES YES
Interface integrated circuit type SCSI BUS TERMINATOR SCSI BUS TERMINATOR
JESD-30 code R-PDSO-G28 R-PDSO-G28
JESD-609 code e0 e0
Number of functions 1 1
Number of signal lines 9 9
Number of terminals 28 28
Maximum operating temperature 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP
Encapsulate equivalent code TSSOP28,.25 TSSOP28,.25
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE
power supply 4.75 V 4.75 V
Certification status Not Qualified Not Qualified
Maximum supply voltage 5.25 V 5.25 V
Nominal supply voltage 4.75 V 4.75 V
surface mount YES YES
technology BICMOS BICMOS
Temperature level COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.635 mm 0.635 mm
Terminal location DUAL DUAL
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