Talk:Flash memory
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SmartMedia and Compact Flashes are NAND Type Memory but not NOR type as mentioned by you. Please verify this and update the page.
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EEPROM
Also, EEPROMs use a totally different principle than flash. The ability to erase single bytes is actually an advantage and requires additional effort.
Additional mentioning of multilevel flash and mirror bit/NROM might be adequate --Qdr 11:00, 16 Jul 2004 (UTC)
What are the limits on the number of cycles you can expect from a flash device ?
Redundant word in article?
"In NOR flash, each cell looks similar to a standard MOSFET transistor, except that it has two gates instead of just one."
Just me being pedantic, but isn't "MOSFET transistor" redundant - like the PIN number syndrome seeing as the "T" in "MOSFET" stands for transistor? Best to remove it or am I just being OTT?
- Whilst it may be redundant logically, most people don't know what a MOSFET is, or what it stands for. boffy_b 15:51, 2005 Apr 2 (UTC)
Booting
Can anybody write a section about booting flash memory ?? (from the BIOS).
Why erasure in units of sectors?
Can someone explain why erasure can only take place one sector at a time, instead of one word at a time?
- I *think* that the erase cuircuitry is quite complex and to duplicate it for every cell would be prohibitively expensive in terms of chip area used.
Performance
It is difficult to find much information about the performance of flash memory. A section on this topic would be nice.
Lifespan explanation
So what exactly happens to the cells over time that gives them a limited lifespan? --Dtcdthingy 09:35, 25 Apr 2005 (UTC)
Standards
Can any one write a section about flash memory standards and standards competition among flash memory manufacturers?
Fragility of data
A section would be nice talking about the fragility (or lack of it) of flash memory. What happens if you stick it to a refrigerator with a magnet? Bring it into a big electrical field of some kind? Tempshill 00:29, 27 May 2005 (UTC)
- it should be pretty much the same as eprom or eeprom. basically anything that makes silcon dioxide conduct and that can get through the packaging will do it. magnets shouldn't have any effect not sure about electric fields but i'd imagine they would have to be pretty damn big to have any effect.
- UV would erase flash if it could get to the chip but it generally can't get through the chip package. x-rays or gamma rays would do it, not sure how much would be needed to cause actual data loss though. static shocks could damage a bare flash chip easilly but are unlikely to be much of an issue inside something like a keydrive. Plugwash 00:38, 27 May 2005 (UTC)