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Memory controller secures NAND-based devices

Posted: 08 Mar 2007 ?? ?Print Version ?Bookmark and Share

Keywords:flash memory? NAND? USB? IntellaSys? memory controller?

IntellaSys Corp. introduced the OnSpec xSil269, a memory controller with 128bit hardware-encrypted security for thumb drives and other NAND flash-based electronic devices with a USB 2.0 interface.

The xSil269's hardware-embedded encryption/decryption function, fully compliant with AES, combines with two-level software authentication of passwords to prevent unauthorized access of memory content.

Virtually bulletproof
According to IntellaSys, the xSil269 provides virtually bulletproof controller security for USB 2.0 NAND flash memory. The controller supports Windows ReadyBoost, a performance enhancement capability that comes with Microsoft's Vista OS. Windows ReadyBoost enables a flash memory device to store information that is being used by the PC's memory manager.

Designed to connect with both USB1.1 and high-speed USB 2.0 host interfaces, the xSil269 supports NAND, NAND MLC and AG-AND flash media. Up to four-chip selects allow extended addressing. Integrating 4byte FEC in a real-time, the OnSpec chip also packs a 16bit processor along with a serial port, two general purpose timers and a watchdog timer. Internal RAM supports enhancements as ROM stores BIOS and application code.

Speed, scalability
On-board NAND flash can be used to store firmware enhancements. The xSil269 also provides programmable R/W widths plus optimally controlled hardware transfer for speed and scalability.

Available in a 48-pin 9-by-9mm LQFP package, the xSil269 chip is now in production and has begun sampling along with evaluation boards to qualified OEMs. Pricing information is being disclosed only to qualified manufacturers of thumb drives and other products using NAND flash memory.

- Ismini Scouras

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