QP Semiconductor Extends Life of DS1691AJ/883 - SMD Device; Re-Engineered RS 422, RS 423 Line Drivers to Fill a Gap in Military/Aerospace Requirements

SANTA CLARA, Calif.—(BUSINESS WIRE)—Aug. 29, 2005— QP Semiconductor today announced that it is well underway with the design of a total replacement part for the now discontinued RS 422, RS 423 Line Drivers with TRI-STATE(R) Outputs; part numbers DS1691AJ/883 and DS1691AJ - SMD (5962-8672101EA). The company made the announcement after the completion of successful simulation of the device on its process flow. QP Semiconductor is now in the advanced layout phase and firm dates for delivery of the initial QP1691AJ production parts will be announced shortly.

According to Jim Townsend, marketing director for QP Semiconductor, "Designing replacement devices such as the 1691 fits exactly into QP Semiconductor's business of extending the life of classic military ICs." QP Semiconductor immediately went through simulation and began the design phase to fill an industry need when it learned that the product was discontinued early this year. Townsend adds, "We are confident that military and aerospace system manufacturers will welcome the QP1691AJ solution as a qualified replacement for the DS1691AJ line drivers."

Enabling Continuation of Present Application Solutions

The QP1691AJ will allow the continued use of these line drivers in applications where a microprocessor is separated from the remote peripheral. The requirements for transmission line and noise immunity have been well described in past technical literature. There are numerous applications of the 1691 in line driver applications. The soon-to-be released QP1691AJ will enable system designers and OEMs to continue to utilize familiar and proven solutions in common transmission line applications.

Commenting on today's launch, Edwin Slipher, director of engineering and chief technologist for QP Semiconductor said, "With over 1540 ICs in our QML (Qualified Manufacturers Listing) portfolio, we continue to expand our list of re-engineered classic devices by adding the QP1691AJ." He adds, "This is a complement to our four DS163X series dual peripheral drivers, originated by National Semiconductor, which we implement using a 50V Bipolar process."

About QP Semiconductor

Founded in 1985 as a test services company, QP Semiconductor ranks today as one of the largest fabless manufacturers of high-reliability ICs for military/aerospace systems. From its headquarters in Santa Clara, California, QP Semiconductor applies design, re-engineering and a full range of manufacturing capabilities to extend the life of classic ICs for a host of mission-critical programs. For more information, visit www.qpsemi.com.

TRI-STATE is a registered trademark of National Semiconductor Corporation.

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