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SPI serial flash devices tout 'smallest' form factor

Posted: 21 Nov 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Silicon Storage Technology? SST? SPI? flash? memory?

Silicon Storage Technology Inc. (SST) has unveiled a family of SPI serial flash memory devices that claims the industry's smallest form factor and lowest power consumption. The SST25WFxxx family is suitable for battery-powered, space- and height-constrained portable applications, including wireless networks such as ZigBee, Bluetooth, Wi-Fi, camera modules, portable media players, remote controls and portable VoIP products. The SST25WFxxx family continues SST's legacy of innovation in serial flash technology and expands the company's presence in the high-volume portable electronics market.

Based on SST's proprietary SuperFlash technology, the first products available in the SST25WFxxx family are offered in densities of 512Kbit to 2Mbit, with plans to introduce higher densities in 2007. The 25WFxxx serial flash devices feature single supply voltage of 1.65V to 1.95V for read and write operations. The maximum active power consumption for both read and write operations is less than half that of the lowest power 3V products on the market. Active read currents are 9mA (typical at 20MHz), standby currents are only 2?A and maximum write currents are 15mA for both program and erase operations.

With this performance, the SST25WFxxx family achieves the lowest voltage and lowest standby current consumption in the industry for SPI serial flash. Using SST's low-power SPI serial flash memory devices in portable electronic systems enables customers to extend battery life in their portable applications, the company said, while the densities allow for more content and additional features to be incorporated into mobile systems.

The SST25WFxxx family of devices is available in both an industry-standard SOIC package and SST's Z-Scale package (XFBGA), which is a true wafer-level package suing multilayer metal interconnect and routing techniques. With a maximum total height of only 0.4mm and an area as small as 3mm? (depending on memory density), the Z-Scale package minimizes required board real estate and maximizes overhead clearance in aggressive physical product designs.

The SST25WFxxx family extends the benefits of serial flash technology, which includes reductions in chipset pin counts, board space, power consumption and cost, to a wider range of battery-powered, small form factor wireless electronics.

The first product available in the SST25WFxxx family is the 1Mbit SST25WF010. Pricing for the SST25WF010 starts at 70 cents in 10,000 unit quantities. The device is already sampling, with volume production expected to begin by the end of this year. All products in the family are Pb-free, RoHS-compliant and available in industrial grade versions.

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