~ SiS550 Family Supports M-Systems' Latest Flash Disk Products as the Storage Media of Choice for Connected Devices ~

TAIPEI, Taiwan, Nov. 21, 2001--- M-Systems (Nasdaq: FLSH), a leader in flash disk data storage products, and Silicon Integrated Systems Corp. (SiS) (TSE: 2363), a leading core logic and graphics supplier and integration technology provider, today announced that M-Systems' DiskOnChip Millennium Plus flash disk has been included in the latest reference designs based on the SiS550 family of products. Suitable for a variety of connected devices, the SiS550 reference designs are complete computer systems that can be easily embedded in Windows CE- and Linux-based applications. Like DiskOnChip, these reference designs save development costs for manufacturers and contribute to a quick time to market. According to SiS, the SiS550 chipset contained within the reference designs provides the best price/performance System on Chip (SoC) solution by integrating an x86-compatible processor with advanced hardware and interfaces.

SiS550 M-systems' DiskOnChip Millennium Plus

"By including the DiskOnChip Millennium Plus in our SiS550 reference designs, we demonstrate to our customers our commitment to provide access to the latest technology for their products," said Shing Wang, senior vice president of SiS. "In addition to having the best flash disk in the world at their disposal, our customers will also benefit by being able to boot from the DiskOnChip Millennium Plus, negating the need for a separate BIOS (Basic Input/Output System) storage device."

Traditionally, embedded systems like the SiS550 needed two separate flash devices, a Boot ROM holding the system initialization code, and a flash disk for storing data. However, with its boot storage capability, products in M-Systems' DiskOnChip Millennium family can combine both in one package, saving cost and board space.

"Back in October of last year, SiS was the first company in the world to successfully utilize our DiskOnChip Millennium for LinuxBIOS. Now, their latest efforts with our new 32MB DiskOnChip Millennium Plus demonstrate ongoing support for our flash disk products as the storage media of choice by SoC pioneers such as SiS who are developing innovative solutions for connected device manufacturers," said Barry Doong, president of M-Systems Asia.

About the SiS550Targeted to manufacturers of connected devices and other products, the SiS550 family represents the first System on Chip (SoC) products from SiS. The SiS550 is a highly integrated chip that includes a X86 CPU, North/South Bridge, MPEG-2 decoder and other expandable peripherals. With its full-featured functionality and complete software support, the SiS550 is set to deliver the best price-performance ratio. More information about the currently available SiS550 product line can be found on the Internet at http://www.sis.com/products/sis55xfamily.htm.

About M-Systems' DiskOnChip Millennium Plus
DiskOnChip Millennium Plus, the world's first 32MB monolithic (single die) flash disk, is designed for the embedded systems, Internet appliances (IAs) and networking markets. It offers increased performance, small size, superb reliability and new data protection and security features not previously available on a flash disk. Co-developed and manufactured by Toshiba Corporation, the DiskOnChip Millennium Plus is the newest member of M-Systems' line of DiskOnChipO flash disk products that provide the functionality of a mechanical hard drive on a solid-state silicon chip.

The DiskOnChip Millennium Plus represents the first time a complex controller has been combined with a flash memory chip on a single piece of silicon to form a monolithic 32MB flash disk. Instead of needing to utilize a separate boot device for BIOS (Basic Input/Output System) storage in addition to a flash disk, manufacturers may use the DiskOnChip Millennium Plus for both boot XIP (execute in place) and data storage functions. More information about M-Systems' new DiskOnChip Millennium Plus can be found on the Internet at http://www.m-sys.com/content/products/product.asp?PID=16&FILE=docMilPlus&FAM=doc.

About M-SystemsM-Systems (Nasdaq: FLSH) is a leader and innovator of flash-based data storage products known as flash disks. M-Systems' flash disks provide the functionality of a mechanical hard drive in a silicon chip. M-Systems' products are based on its patented TrueFFSR technology and target applications in a vast array of markets, including connected devices, mobile and telecom. M-Systems' products include the DiskOnChip®, DiskOnKey®, Fast Flash Disk (FFD) and Compact Flash product families. For more information, please contact M-Systems at www.m-sys.com.

Note to Editors: Block diagrams of SiS550 IA reference designs with M-Systems' DiskOnChip can be found on the Internet at www.sis.com/products/sis55xfamily_benefits.htm.

All company and product names mentioned may be trademarks or registered trademarks of their respective holders and are used for identification purposes only. The matters discussed in this news release include forward-looking statements that are subject to risks and uncertainties that may cause actual results to vary significantly. These risks include market and competitive factors, and other risks described in the Company's registration statement dated March 7, 2000 and other periodic reports filed with the Securities and Exchange Commission. The Company assumes no obligation to update the information in this release. Reference to the Company's website above does not constitute incorporation of any of the information thereon into this press release.