Lattice Mixed-Signal Power Manager Devices Will Simplify Thales' System Design

Versatile ispPAC® Power Manager Devices Selected for Thales' Signal and Image Processing System

HILLSBORO, OR - May 13, 2004 - Lattice Semiconductor Corporation (NASDAQ: LSCC), the inventor of in-system programmable (ISP^TM) logic products, today announced that Thales, a world leader in professional electronics for the aerospace, defense and IT & services industries, has chosen the Lattice ispPAC Power Manager devices for its signal and image processing system based on the PowerPC750fx processor. The ispPAC Power Manager plays a critical role in monitoring various analog input sensors and supervising the power sequencing requirements of the Thales system.

"We were able to resolve our power supply sequencing and supervisory problems quickly by using the Lattice ispPAC Power Manager devices," said Lionel Defrance, digital hardware engineer, and Vincent Vieu, manager of the digital hardware department of Thales Airborne Systems. "Not only was the board design greatly simplified by the flexibility and superior performance of the ispPAC-POWR1208 devices, but, as a single-chip solution, the Power Manager also provided a 30% savings in the circuit board area. We are now standardizing on ispPAC Power Manager-based solution across multiple boards in our signal and image processing system." Thales also used the device in a high-voltage environment and found no performance degradation. Thales concluded that the Lattice ispPAC Power Manager devices will not only simplify analog design, but will increase the efficiency of the entire system design process as well.

The ispPAC-POWR1208 devices integrate Lattice's industry-leading ispMACH^TM CPLD with ispPAC programmable analog technologies to create a single chip that provides a versatile, cost effective and convenient response to Thales' system design challenges. The ispPAC-POWR1208 performs multiple functions in the Thales system. For example, an embedded ispMACH CPLD, designed to operate under noisy power supply conditions, is used for sequencing, monitoring and supervisory signal generation; the device provides precision programmable threshold comparators to monitor up to 12 power supply voltages; programmable delay timers plus an internal oscillator are used for flexible timing control; and programmable high voltage MOSFET driver outputs control supply ramp rate.

"Customers such as Thales implementing complex analog designs can take advantage of Power Manager features that include integrated resistors, capacitors, sense amps, FET drivers and control logic, all provided in a single, low-cost, programmable power management chip." said Steve Stark, Director of Product Marketing for Lattice.

About ispPAC Power Manager
Lattice's Power Manager devices provide a standard, off-the-shelf programmable mixed-signal solution for power management that enhances reliability and speeds time-to-market. Analog features such as input comparator thresholds and digital functions such as supply control sequences are programmed into non-volatile E²CMOS® elements on the devices using an IEEE1149.1 boundary scan protocol. Applications for Power Manager devices include a broad variety of electronic equipment, including telecom and networking systems, storage systems, servers, test equipment and automotive electronics. Their programmable features make them ideal for controlling multiple power supplies in conjunction with a wide range of regulator and switching technologies. For more information on the ispPAC Power Manager devices, visit http://www.latticesemi.com/products/ispPAC/POWRMGR/index.cfm

About Thales
Thales is an international electronics and systems group serving defense, aerospace and security markets. The group employs 62,000 people worldwide and generated revenues of $10.6 billion in 2003. For more information about the company and its products, call + 33 (0) 1 57 77 86 26 or visit http://www.thalesgroup.com/

About Lattice Semiconductor
Lattice Semiconductor Corporation, the inventor of in-system programmable^TM (ISP^TM) logic products, designs, develops and markets the broadest range of Field Programmable Gate Arrays (FPGA), Field Programmable System Chips (FPSC) and high-performance ISP Programmable Logic Devices (PLD), including Complex Programmable Logic Devices (CPLD), Programmable Analog Chips (PAC^TM), and Programmable Digital Interconnect (GDX^TM). Lattice also offers industry leading SERDES products. Lattice provides total solutions for today's system designs by delivering innovative programmable silicon products that embody leading-edge system expertise.

Lattice products are sold worldwide through an extensive network of independent sales representatives and distributors, primarily to OEM customers in the fields of communications, computing, computer peripherals, instrumentation, industrial controls and military systems. Company headquarters are located at 5555 NE Moore Court, Hillsboro, Oregon 97124-6421, USA; telephone 503-268-8000, fax 503-268-8037. For more information about Lattice Semiconductor Corporation, visit http://www.latticesemi.com.

Statements in this news release looking forward in time are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that forward-looking statements involve risks and uncertainties including market acceptance and demand for our new products, our dependencies on our silicon wafer suppliers, the impact of competitive products and pricing, technological and product development risks and other risk factors detailed in the Company's Securities and Exchange Commission filings. Actual results may differ materially from forward-looking statements.

Lattice Semiconductor Corporation, Lattice (& design), L (& design), E2CMOS, GDX, ISP, ispMACH, ispPAC, PAC and specific product designations are either registered trademarks or trademarks of Lattice Semiconductor Corporation or its subsidiaries in the United States and/or other countries.

GENERAL NOTICE: Other product names used in this publication are for identification purposes only and may be trademarks of their respective holders.