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Technology Stocks : WDC/Sandisk Corporation -- Ignore unavailable to you. Want to Upgrade?


To: Ausdauer who wrote (12046)6/17/2000 1:22:00 PM
From: wily  Read Replies (1) | Respond to of 60323
 
embedded vs storage Flash

This is how I (from my unenlightened vantage point) see the difference:

Embedded Flash has the controller logic onboard the Flash chip. Plus, the memory array which is the major part of that chip is of a different type from storage Flash, in that it can hold programming code in addition to data, the latter of which is what storage Flash is limited to.

The ability to store programming code gives embedded Flash the ability to support logic processors (in the same way that a cpu uses RAM and cache to hold application code).

NOR Flash is embedded Flash whereas NAND Flash is storage Flash. Storage Flash, such as Sandisk's uses a separate chip as part of a multi-chip package for the controller.

Storage Flash's unit memory cell can be made smaller than that of embedded Flash, which gives it a cost advantage.

Additions, corrections, deletions?

wily