inSilicon Expands USB Capabilities with Vanteon's Software and Services

Vanteon to Provide USB Software Customization Services

SAN JOSE, Calif., June 29, 2000 - inSilicon Corporation (Nasdaq: INSN) - a leading provider of communications technology for complex systems-on-a-chip - today announced a marketing agreement with Vanteon, a national technology engineering solutions firm, to provide software customization services to licensees of inSilicon's Universal Serial Bus (USB) technology.

Vanteon will provide inSilicon's customers with customized USB software including Windows® device drivers and embedded peripheral software. By utilizing this service, designers will be able to allocate more time and attention to adding and enhancing product features.

"Vanteon has extensive expertise in planning, developing and validating customer designs that employ USB," said John Weekley, director of partner marketing for inSilicon. "By working with Vanteon's software and design services team, USB product developers can access an outstanding resource for custom software services."

"inSilicon is a leader in USB semiconductor intellectual property technology," stated Drew Traver, director of Vanteon's hardware and embedded line of business. "Working closely with inSilicon, Vanteon will provide customers rapid time-to-market, with high-quality USB 1.1 and USB 2.0 peripheral software and services."

inSilicon's USB Leadership
USB is well on its way to becoming one of the most widely deployed high-speed point-to-point communications technologies, with estimated shipments in excess of 500 million devices to ship in 2003, according to In-Stat. USB provides true "plug-and-play" convenience for leading-edge technology products, including printers, scanners, digital cameras, speakers, and mobile communications and computing devices.

Pioneering advances and innovation in USB semiconductor intellectual property, inSilicon recently announced (6/26/00) an agreement with Cadence Design Services for the joint development of an integrated USB 2.0 analog transceiver, enabling customers with a complete system-on-chip solution for their USB 2.0 products.

inSilicon's broad USB technology portfolio includes a USB 2.0 device controller, the first USB 2.0 device controller fully supporting the USB 2.0 Transceiver Macrocell Interface (UTMI) specification. Conceptually proposed by inSilicon and developed by Intel Corporation, the UTMI specification is broadly supported by the industry's leading USB semiconductor, ASIC and FPGA suppliers including Hewlett-Packard Company, Lucent Microelectronics, Texas Instruments, Fujitsu, ST Microelectronics, Cypress Semiconductor and others.

inSilicon also offers a USB 1.1 OHCI host controller, USB 1.1 device controller, USB 1.1 hub controller as synthesizable cores, and a test environment that provides simulation and verification suites.

About inSilicon
inSilicon Corporation is a leading provider of communications and connectivity technology used by semiconductor and systems companies to design complex systems-on-chip that are critical components of digital devices. inSilicon's technology provides customers faster time-to-market, and reduced risk and development cost. The Company's enabling communications technologies, including Ethernet, USB, PCI, and IEEE 1394 are used in a wide variety of markets encompassing communications, consumer, computing, and office automation.

About Vanteon
Vanteon is the national provider of technology engineering solutions for the digital economy. Leveraging 15 years of engineering excellence, Vanteon delivers world-class technology and engineering in the areas of eBusiness, mobile and broadband, commercial software, hardware and embedded systems and eQuality assurance. Vanteon is headquartered and operates a development center in Rochester, N.Y. Additional development centers are located in Boston, Mass.; San Diego, Calif.; Silicon Valley, Calif. (2 locations); Redmond, Wash.; Salt Lake City, Utah and New York City. For additional information, please visit www.vanteon.com or call 1-800-266-5046.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995:

In addition to the historical information contained herein, statements in this press release may contain forward-looking statements within the meaning of the Federal securities laws and are subject to the safe harbors created thereby. The following are among the factors that could cause actual results to differ materially from the forward-looking statements: the risks that products will fail to achieve market acceptance, the timing of customer orders, delays in the design process, the length of inSilicon Corporations' sales cycle, inSilicon Corporation's ability to develop, introduce and market new products and product enhancements, changes in product mix or distribution channels; the demand for semiconductors and end-user products that incorporate semiconductors; technological difficulties and resource constraints encountered in developing and/or introducing new products; natural disasters/acts of God; and other risks both domestic and international. Forward-looking statements contained in this press release regarding expected financial results, industry trends, sales and future product development and business strategies and activities should be considered in light of these factors and those factors discussed from time to time the Company's public reports filed with the Securities and Exchange Commission, such as those discussed under "Risk Factors"' in the Company's report on form S-1 filed in March 2000, and Company 10Q filed in May 2000.

inSilicon is a trademark of inSilicon Corporation. All other trademarks are the property of their respective owners.