LATTICE ANNOUNCES IP CORE COOPERATION WITH DIGITAL CORE DESIGN

- Digital Core Design Optimizes Their IP Cores for Lattice's ispXPGA^TM and ORCA FPGA/FPSC Devices as Founding Member of Lattice's ispLeverCORE^TM Connection Program -

HILLSBORO, OR, USA/BYTOM, POLAND - SEPTEMBER 2, 2003 - Lattice Semiconductor Corporation (NASDAQ: LSCC) today announced a partnership with Digital Core Design (DCD) that will allow the companies to better serve customers' needs for Intellectual Property (IP) implemented on Lattice's programmable logic devices (PLDs). By joining Lattice's ispLeverCORE Connection IP partners program as a founding member, DCD will be actively supported by Lattice in its efforts to provide optimized IP solutions for Lattice Field Programmable Gate Array (FPGA) and Field Programmable System Chip (FPSC) devices. Lattice's IP partners program is designed to allow customers to easily access and integrate many 3rd-party IP products on Lattice programmable devices.

"Lattice is pleased to partner with Digital Core Design, an IP company with an extensive portfolio that specializes in improved architectures for MPU/MCUs, floating point unit (FPU) co-processors, and peripherals. DCD is also committed to providing total customer solutions, which can be seen in the debugging software and hardware they've developed for their 8051 and 80390 processor cores. We're very excited to add DCD products such as their FPUs and 8-bit microcontroller cores to the Lattice extended IP product line," said Stan Kopec, Lattice Vice President of Corporate Marketing.

Tomek Krzyzak, VCEO of Digital Core Design stated: "Lattice has highly-differentiated programmable products such as its ispXPGA family and ORCA FPSCs that will drive our IP into new applications. We're eager to partner with such a reputable semiconductor supplier, and to make our high-quality IP Cores readily available to Lattice customers worldwide."

For the launch of the ispLeverCORE Connection program, Digital Core Design has ported, optimized, and tested a selection of their flagship IP cores on Lattice FPGA devices. The initial Connection Cores from DCD are shown below. Check the Lattice website for up-to-date information on DCD's Connection Cores.

• DI2CM: I2C Bus Interface - Master
• DI2CS: I2C Bus Interface - Slave
• DI2CSB: I2C Bus Interface Slave - Base version
• DSPI: Serial Peripheral Interface - Master/Slave

• D16550: Configurable UART with FIFO

• DFPADD: Floating Point Pipelined Adder Unit
• DFPMUL: Floating Point Pipelined Multiplier Unit
• DFPDIV: Floating Point Pipelined Divider Unit
• DFPSQRT: Floating Point Pipelined Square Root Unit
• DFPCOMP: Floating Point Comparator Unit
• DINT2FP: Integer to Floating Point Pipelined Converter
• DFP2INT: Floating Point To Integer Pipelined Converter
• DFPAU: Floating Point Arithmetic Unit
• DFPMU: Floating Point Mathematics Unit

• DF6811: 8-bit FAST Microcontrollers Family
• DF8611CPU: 8-bit FAST Microcontrollers Family
• DFPIC165X: High Performance 8-bit RISC Microcontroller
• DFPIC1655X: High Performance Configurable 8-bit RISC Microcontroller
• DR8051CPU: High Performance Configurable 8-bit Microcontroller
• D8254: Programmable Interval Timer
• DR8051: High Performance Configurable 8-bit Microcontroller
• DR8051XP: High Performance Configurable 8-bit Microcontroller
• DRPIC1655X: High Performance Configurable 8-bit RISC Microcontroller
• DR80390: High Performance Configurable 8-bit Microcontroller
• DR80390CPU: High Performance Configurable 8-bit Microcontroller
• DR80390XP: High Performance Configurable 8-bit Microcontroller

These Connection Cores are available in netlist format for immediate purchase from Digital Core Design. DCD also offers a variety of additional packaging and licensing options to suit customer's specific needs. By leveraging partner products, customers can quickly implement a wide variety of functions in Lattice programmable devices.

Oregon-based Lattice Semiconductor Corporation designs, develops and markets the broadest range of Field Programmable Gate Arrays (FPGAs), Field Programmable System Chips (FPSCs) and high-performance ISP^TM programmable logic devices (PLDs). Lattice offers total solutions for today's system designs by delivering the most 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 communication, computing, computer peripherals, instrumentation, industrial controls and military systems. Company headquarters are located at 5555 NE Moore Court, Hillsboro, Oregon 97124 USA; Telephone 503-268-8000, FAX 503-268-8037. For more information on Lattice Semiconductor Corporation, access our World Wide Web site at http://www.latticesemi.com.

Digital Core Design (DCD), a privately held company founded in 1999, is one of the leading independent providers of IP core products. The company provides high-quality, low-cost synthesizable IP cores in VHDL and Verilog for functions such as microcontrollers, bus interfaces, arithmetic coprocessors and other arithmetic components. Designed from the ground up to meet SOC requirements, DCD's products offer:

• An industry-leading combination of high performance, low power, and small die size
• Easy system integration to peripherals, coprocessors, and memories
• Easy customization for adaptability to a wide range of applications
• A choice of robust third party development and software tools
• An ASIC-style implementation methodology that leverages commercially available design tools

Specializing in modifications of existing popular microcontrollers and microprocessors, Digital Core Design offers new & improved microcontroller architectures - 100% software compatible with their predecessors. The processors can be integrated with a broad range of available peripherals, including: Timers, UARTS, I2C interface, SPI interface, Compare/Capture, Watchdog Timer and fixed/floating point coprocessors.

The other company specialization is developing of unique Fixed and Floating Point arithmetic coprocessors, and IEEE 754 compliant pipelined floating point units which allow an extremely fast floating point computation. Digital Core Design is located in Bytom, Poland, with a U.S. sales office in Texas. Company headquarters are located at: Wroclawska 94, 41-902 Bytom, POLAND; Telephone: +48 32 282 82 66, FAX: +48 32 282 74 37. For more information on Digital Core Design, please see the World Wide Web site at http://www.dcd.pl.

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.