Designing NAND Flash into embedded systems

By Dave Hughes, HCC-Embedded

The benefits of a good design incorporating the latest NAND flash are truly stunning when viewed in any historical perspective: very large scale, high performance storage in a solid state device at relatively low cost. Moore’s Law is just not up to the job when it comes to progress in NAND flash. The only catch is that to get adequate reliability the details of the design must be well understood.

The use of NAND flash in embedded systems is one of the strongest trends in the industry. Some forecasts estimate that 2.5 billion NAND devices will be sold this year, with predictions of substantial year-on-year growth over the coming years.  NAND flash has many advantages for embedded systems; high-volume storage at low cost, very fast access times, and very fast erase times make them ideal candidates for thousands of applications. But this feature set does not come without a cost; the devices are relatively complex to use and require a deeper understanding than more conventional memory devices...

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