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PDF LX5212 Data sheet ( Hoja de datos )
| Número de pieza | LX5212 | |
| Descripción | 9-LINE LOW CAPACITANCE/ POWER SCSI TERMINATOR | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LX5212 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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T H E I N F I N I T E P O W E R O F I N N O VAT I O N
L I N D O C #: 5212
LX5212
9-LINE LOW CAPACITANCE, µPOWER SCSI TERMINATOR
PR O D U C T I O N D ATA S H E E T
DESCRIPTION
KEY FEATURES
The LX5212 is a nine-line active terminator
for the SCSI parallel bus. This SCSI standard
recommends active termination at both ends
of the SCSI bus.
During disconnect mode, the LX5212 re-
quires a meager 500nA of supply current
while offering only 2.5pF of output capaci-
tance. To enter this low-power mode, the
disconnect pin can be left open (floating)
or driven high, thereby disconnecting the
terminating resistors and placing the internal
low dropout regulator into low-power
mode. In disconnect mode, each termina-
tion line presents a high impedance to the
SCSI bus with the overall effect being to
preserve high signal integrity and yield
subsequent reliable, error-free communica-
tions.
During normal operation, the LX5212
consumes only 600µA of current, which is
the lowest enabled supply current of any
terminator available on the market today.
Linfinity's proprietary BiCMOS low dropout
regulator architecture enables this unique
and very efficient operating characteristic.
The LX5212 also offers a precisely
trimmed channel output current specified to
a 5% tolerance. The maximum value of the
output current is trimmed as closely as
possible to the SCSI standard maximum
specification to give the highest possible
noise margin for fast SCSI operation. And
the LX5212 sinks up to 30mA of current,
making it compatible with today's fast active
negation drivers.
The LX5212 is a superior, pin-for-pin
replacement for a variety of industry prod-
ucts, such as the UC5614.
s 2.5pF OUTPUT CAPACITANCE DURING
DISCONNECT
s 500nA SUPPLY CURRENT IN DISCONNECT
MODE
s 600µA SUPPLY CURRENT DURING NORMAL
OPERATION
s 30mA SINK CURRENT FOR ACTIVE
NEGATION
s LOGIC COMMAND DISCONNECTS ALL
TERMINATION LINES
s CURRENT LIMIT AND THERMAL PROTECTION
s COMPATIBLE WITH SCSI 1, 2, 3, AND FAST
20 STANDARDS
s HOT SWAP COMPATIBLE
s CONSULT FACTORY FOR APPLICATION TEST
REPORT: 5212TR
s EVALUATION BOARD AVAILABLE
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
PRODUCT HIGHLIGHT
R E C E I V I N G W AV E F O R M - 20MHZ
DR I V I N G W AV E F O R M - 20MHZ
Copyright © 1997
Rev. 1.8 11/97
Receiver
Driver
LX5212
1 Meter, AWG 28
LX5212
LX5268
LX5268
NOTE:
For An In-Depth
Discussion On Applying
SCSI, Request Linfinity
Application Note:
"Understanding The
Single-Ended SCSI Bus"
TA (°C)
0 to 70
PACKAGE ORDER INFORMATION
N
Plastic DIP
16-pin
PWP
Plastic TSSOP
24-pin, Power
DP
Plastic SOIC
16-pin, Power
LX5212CN
LX5212CPWP
LX5212CDP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5212CDPT)
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LX5212.PDF ] | |
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