SST Launches Enhanced Performance FlashFlex Microcontroller

New SST89C58RC 8-bit MCU Features Dual Enhanced SMBus Interfaces and Small-Form Factor for HDMI and Notebook PC Applications

SUNNYVALE, Calif.— SST (Silicon Storage Technology, Inc., NASDAQ: SSTI), a leader in flash memory technology, today announced a new addition to its FlashFlex family of 8-bit microcontrollers (MCUs), the SST89C58RC. The new device is the industry’s first 8051-based MCU to feature two system management buses (SMBus), each supporting up to 400 Kbit per second data throughput, in a tiny 6mm x 6mm QFN package. The SST89C58RC supports operating voltages from 2.7V to 5.5V for implementation in applications with a variety of power supply requirements. Its dual SMBus feature, small form factor and support for a wide range of operating voltages make the SST89C58RC MCU an ideal solution for numerous applications, including HDMI, HDTVs, A/V receivers, home appliances, industrial instruments, notebook PCs, DVD players, Blu-ray players, RF modules and security applications such as fingerprint identification.

"Silicon Image appreciates the flexibility of the SST89C58RC MCU" stated Mark Williams, systems engineering director, Silicon Image, Inc. "The dual hardware SMBus interfaces let the SST89C58RC act as an intermediary between a host processor and a complex multi-chip A/V subsystem. The MCU is ideal for bundled applications, shielding the host from low-level interrupts while providing it with a ’virtual’ register interface for simplified control and status access"

Glenn L. Marks, global design services technical leader at Silicon Image, also noted, "The new SST89C58RC MCU allowed us to successfully create our smallest reference board"

"The MCU market is very competitive, and to be successful semiconductor vendors must offer customers devices with the right blend of features, performance and ease of implementation" said Paul Lui, senior vice president, Memory and Special Products Business Unit, SST. "With its support for two SMBus interfaces in hardware and a tiny 6mm x 6mm package, the SST89C58RC addresses two important trends in mobile devices: minimizing board space and increasing functionality. We feel the SST89C58RC is a unique offering in the 8-bit 8051 MCU market that will enable customers to design new products quickly and efficiently"

The SST89C58RC is the latest member of the FlashFlex family of 8-bit microcontroller products with SST patented and proprietary SuperFlash nonvolatile flash memory cells. SuperFlash memory uses a split-gate cell design and a thick-oxide tunneling injector to offer significant cost and reliability benefits to customers. All devices in the FlashFlex family use the 8051 instruction set and are pin-for-pin compatible with standard 8051 microcontroller devices. In addition, all devices in the FlashFlex family feature In-System Programming (ISP) and In-Application Programming (IAP) to allow for maximum design flexibility by enabling the user to update the flash device in the field or in an application. Both IAP and ISP lower cost and improve time-to-market for manufacturers, while bringing enhanced user experiences and convenience to consumers. These re-programming features also have a significant role in enabling increased functionality, such as remote diagnostics and product monitoring, in network- or Internet-enabled devices. The SST89C58RC comes with 1 KByte of on-chip RAM and up to 34 KBytes of embedded SuperFlash memory.

Pricing and Availability
The SST89C58RC is now in production and is priced at $1.25 per unit in 10K unit quantities.
Forward-Looking Statements
Except for the historical information contained herein, this news release contains forward-looking statements regarding memory and non-memory market conditions, SST’s future financial performance, the performance of new products, growth opportunities, SST’s licensing business, SST’s ability to diversify its business, the transition of SST’s products to smaller geometrics, SST’s ability to bring new products to market and shareholder returns, all of which involve risks and uncertainties. These risks may include timely development, acceptance and pricing of new products, the terms, conditions and revenue recognition issues associated with licensees’ royalty payments, the impact of competitive products and pricing, and general economic conditions as they affect SST’s customers, as well as other risks detailed from time to time in the SST’s SEC reports, including the Annual Report on Form 10-K for the year ended December 31, 2007 and Quarterly Report on Form 10-Q for the quarter ended March 31, 2008. These forward-looking statements are not guarantees of future performance and speak only as of the date hereof, and, except as required by law, SST disclaims any obligation to update these forward-looking statements to reflect future events or circumstances.

For more information about SST and the company’s comprehensive list of product offerings, please call 1-888/SST-CHIP. Information can also be requested via email to literature@sst.com or through SST’s Web site at http://www.sst.com. SST’s head office is located at 1171 Sonora Court, Sunnyvale, Calif.; telephone: 408/735-9110; fax: 408/735-9036.

The SST logo, FlashFlex and SuperFlash are registered trademarks, and In-Application Programming and IAP are trademarks of Silicon Storage Technology, Inc. All other trademarks or registered trademarks are the property of their respective holders.