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Toshiba launches 24nm 8Gb BENAND™ SLC NAND Flash Memory
Toshiba Electronics Europe (TEE) has expanded its range of 24nm BENAND™ single level cell (SLC) NAND flash memory with embedded 8bit error correction (ECC). The launch of the new 8Gb 24nm SLC BENAND™ enables manufacturers to utilise the latest 24nm technology in devices that were designed to use 4xnm NAND, extending the product life of consumer electronics, multimedia devices, smart meters, intelligent lighting systems and industrial technology.
BENAND™ removes the burden of ECC from the host processor and enables designers to utilize leading edge process NAND flash technology. To ensure easy migration, the new BENAND™ have been designed so that features such as Page/Block size, spare area size, Commands, Interface and Package are kept the same as legacy 4xnm SLC NAND.
The price of NAND Flash memory made at advanced process nodes is reduced, but the smaller cells become more vulnerable to program/erase stresses. This requires more complex ECC to maintain the desired levels of reliability - for example small density 4xnm SLC NAND requires 1bit ECC, 3xnm SLC NAND requires 4bit ECC and 2xnm SLC NAND requires 8bit ECC.
ECC has traditionally been built into the host controllers, often making switching to newer, more cost effective NAND an expensive and time-consuming task as the host processor must be changed to enable the required level of error correction. However, BENAND™ rewrites this paradigm by moving the ECC onto the NAND chip and enabling legacy controllers to be used with the latest NAND technology – reducing BOM and system design costs while maintaining the high reliability of SLC NAND.
This introduction of 8Gb extends the line-up of BENAND™ from 1Gb to 8Gb, which is available in TSOP and BGA packages and in industrial and consumer operating temperature ranges.
For more information, or details on the full range of Toshiba products available from Anglia, please email info@anglia.com
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This news article was originally published in September 2014.
