Lattice IPexpress User Configurable
IP Cores Dramatically Reduce 
Evaluation Time, Accelerate Time to Market

- Functions Including DDR, Ethernet MAC, FFT Compiler and PCI can be
Parameterized, Instantiated and Evaluated in Hardware on the Desktop  -

HILLSBORO, OR -- March 29, 2006 --  Lattice Semiconductor Corporation (NASDAQ: LSCC) today announced the immediate availability of several key ispLeverCORE™ Intellectual Property (IP) modules that are user configurable via its IPexpress™ design flow.  The new IPexpress flow, included as a standard feature in Lattice’s ispLEVER® design tool suite, significantly reduces design time by allowing IP parameterization and timing analysis on the designer’s desktop.  In addition, a new hardware evaluation capability minimizes design risk by allowing free trial use of the cores prior to the purchase of an IP core license.  IPexpress-supported functions include DDR, Ethernet, FIR, FFT, PCI and Reed-Solomon encoder and decoder.  Lattice intends to make several more IPexpress cores available throughout the year.

“Customers face two formidable challenges when designing with IP.  One is that traditionally customers must purchase an IP core license before they can evaluate the performance of their design in hardware.  The second is that the evaluation process can be very time consuming, particularly when design specifications change, as they often do,” said Stan Kopec, Lattice corporate vice president of marketing.  “Our IPexpress user configurable cores resolve both issues.  Trial use of the cores before purchase of an IP license allows the design to be tested in hardware, and the ability to instantly change design specifications dramatically reduces the time needed for evaluation, enabling faster time to market,” Kopec concluded.

By configuring IP cores using the IPexpress flow, designers are able to simulate, place and route, generate netlists and run static timing analysis with their own logic and selected core parameters – all in real-time.  The IPexpress flow also supports a hardware evaluation capability that makes it possible to create versions of the IP core that operate in hardware for a limited period of time without requiring the purchase of an IP license.

Availability

IPexpress user configurable cores available for immediate download from the Lattice IP server (accessible through the ispLEVER IPexpress GUI window) include:

• DDR Controller
• Dynamic Block Reed-Solomon Encoder
• Dynamic Block Reed-Solomon Decoder
• FFT Compiler
• FIR Compiler
• PCI
• Soft Error Detection
• Tri-Speed Ethernet MAC

User Guides for these IP modules can be found on the Lattice website at  http://www.latticesemi.com/products/intellectualproperty/.

Lattice’s comprehensive ispLEVER design software, providing support for all Lattice CPLDs and FPGAs, including IPexpress support, is priced at a low $695 suggested resale for a complete PC-based seat.

About Lattice ispLeverCORE IP Modules

Lattice ispLeverCORE IP modules are large, modular design blocks that can be reused and easily placed within a programmable logic design.  The ispLeverCORE modules implement popular industry-standard functions, commonly known as intellectual property (IP) cores.

The ispLeverCORE modules are optimized for use with Lattice devices.  The modules are designed using the highest coding standards and are extensively tested to meet the required functionality and performance.  These cores are ready-to-use, well documented and supported extensively by Lattice field and factory engineers.  Most ispLeverCORE modules are designed to be parameterizable so that the module can be reconfigured quickly to meet specific system requirements.

About Lattice Semiconductor

Lattice Semiconductor Corporation provides the industry’s broadest range of Field Programmable Gate Arrays (FPGA) and Programmable Logic Devices (PLD), including Field Programmable System Chips (FPSC), Complex Programmable Logic Devices (CPLD), Programmable Mixed-Signal Products (ispPAC®) and Programmable Digital Interconnect Devices (ispGDX®). Lattice also offers industry leading SERDES products.

Lattice is “Bringing the Best Together” with comprehensive solutions for system design, including an unequaled portfolio of non-volatile programmable devices that deliver instant-on operation, security and “single chip solution” space savings.

Lattice products are sold worldwide through an extensive network of independent sales representatives and distributors, primarily to OEM customers in communications, computing, industrial, consumer, automotive, medical and military end markets.  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 third party software 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.