LX5213 Datasheet, PDF (1/4 Pages) Microsemi Corporation – 9-LINE LOW CAPACITANCE, μPOWER SCSI TERMINATOR

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 #: 5213
LX5213
9-LINE LOW CAPACITANCE, µPOWER SCSI TERMINATOR
PR O D U C T I O N D ATA S H E E T
DESCRIPTION
The LX5213 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 LX5213 re-
quires a meager 60µA of supply current while
offering only 3.5pF of output capacitance.
To enter this low-power mode, the discon-
nect 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 discon-
nect mode, each termination 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 communications.
During normal operation, the LX5213 con-
sumes only 600µA of current, which is the
lowest enabled supply current of any termi-
nator available on the market today.
Linfinity's proprietary BiCMOS low dropout
regulator architecture enables this unique
and very efficient operating characteristic.
The LX5213 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 LX5213 sinks
up to 150mA of current, making it compatible
with today's fast active negation drivers.
The LX5213 is a superior, pin-for-pin re-
placement for a variety of industry products
such as the UC5603 and UC5613.
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
KEY FEATURES
s 3.5pF OUTPUT CAPACITANCE DURING
DISCONNECT
s 60µA SUPPLY CURRENT IN DISCON-
NECT MODE
s 600µA SUPPLY CURRENT DURING
NORMAL OPERATION
s 150mA SINK CURRENT FOR ACTIVE
NEGATION
s LOGIC COMMAND DISCONNECTS ALL
TERMINATION LINES
s CURRENT LIMIT AND THERMAL
PROTECTION
s COMPATIBLE WITH SCSI 1, 2 AND 3
STANDARDS
s CONSULT FACTORY FOR APPLICATION
TEST REPORT: 5213TR
PRODUCT HIGHLIGHT
R E C E I V I N G W AV E F O R M - 1 0 M H Z
D R I V I N G W AV E F O R M - 1 0 M H Z
Copyright © 1997
Rev. 1.9 7/97
Receiver
Driver
LX5213
1 Meter, AWG 28
LX5213
LX5268
LX5268
NOTE:
For An In-Depth
Discussion On Applying
SCSI, Request Linfinity
Application Note:
"Understanding The
Single-Ended SCSI Bus"
T_A (°C)
0 to 70
PACKAGE ORDER INFORMATION
N
Plastic DIP
16-pin
PWP
Plastic TSSOP
24-pin, Power
DP
Plastic SOIC
16-pin, Power
LX5213CN
LX5213CPWP
LX5213CDP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5213CDPT)
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: [phone]
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