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Flash memory device with 10MBps write speed

Posted: 17 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:samsung electronics? onenand flash? memory device?

Samsung Electronics Co. Ltd disclosed that it has developed a 1Gb OneNAND flash memory device utilizing the company's advanced 90nm process technology.

The OneNAND device, providing a new Unified Storage concept, combines the high-speed data read function of NOR flash and the advanced data storage of NAND flash. The single chip is based on NAND architecture integrating buffer memory and logic interface.

Featuring a 66MHz synchronous interface and cache read function that enable an enhanced read performance of 108MBps, the 1Gb OneNAND Flash boasts a four-fold read speed increase over conventional NAND flash performance. Its faster read speeds resolves the delay time in copying the boot code from the NAND Flash to the DRAM and executing applications on-demand, the press release said.

According to the company, the 1Gb OneNAND delivers 10MBps of write speed, enabling direct write into the total flash memory space without the need for DRAM buffering. This provides continuous, multi-shot capturing of 5Mpixel images and real-time recording of VGA resolution video.

The OneNAND device also supports enhanced security features. An OTP block has been integrated into its design to prevent forgery. In addition, a lock function for the memory block unit is available to protect the OS from viruses.

The new flash solution is available separately or can be mounted together with a mobile SDRAM in an MCP to effectively execute the key operations on feature intensive next-generation mobile phones. Placing two 1Gb OneNAND flash and one mobile SDRAM in a 3-chip MCP, can satisfy the high performance, multimedia memory requirements of 3G mobile handsets, Samsung said.

The company's complementary flash software solution includes a selection of operating software, an interface to RTOS file systems, all respective device drivers, and software development tools that further facilitate the application of OneNAND to mobile handsets.

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