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Flash Memory - Which one is the fastest?

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elecracker

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Flash Memory

Which one is the fastest ?
 

elecracker

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I also need one that has very large memory size.
 

bigrice

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Nand flash

you can try Samsung's NAND flash ROM, the max size could be 1GB.
 

GRAY

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Re: Nand flash

bigrice said:
you can try Samsung's NAND flash ROM, the max size could be 1GB.

yes,but, do you know samsung's NAND flash has some bugs?so be careful!
 

must

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Re: Flash Memory

I heard about the Samsung NAND flash bug before, but could you tell us more about this?
 

ic_design

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Intel flash is also very popular to use.
 

nirav1983

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Hi,
Why dont u use compact flash...its very convenient....true IDE mode and stuff...i am using it currently for my mp3 player project.
 

gerryhsu

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Re: Nand flash

GRAY said:
bigrice said:
you can try Samsung's NAND flash ROM, the max size could be 1GB.

yes,but, do you know samsung's NAND flash has some bugs?so be careful!

What bug?
 

2heat

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Re: Flash Memory

Hi

i work with the samsungs NANDs. What bugs
excist? Did you hear anything about MRAMs.
As they seem to be a good solution for not using
NAND-Flashes.
 

my_design

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Although MRAM will be a good solution, it is not a mature product now.
 

BenKropp

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Re: Flash Memory

seems that Samsung NAND chips are hard to get now. Better check availability before using them.
Maybe it's better to use the cards (Smartmedia or Compactflash)
 

jodokus

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Re: Flash Memory

Take a look at nexflash, They claim to have the worlds fastest flash memory.
 

gerryhsu

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Re: Flash Memory

elecracker said:
Which one is the fastest ?

The main focus of Flash is capacity, not speed. The faster the chip the more power it consumes and the bigger die sie
 

jacneo

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As I know, Samsung Nand flash will unstable at some lots. At spec. it work at 2.7~3.3v, but when you got the unstable nand flash. It only can work at 2.7v. This is a big bug at mass production.
 

BlueSky68

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Re: Flash Memory

Have you guys check Toshiba and Micron for Flash memory?
They all have a wide range of selections.

Regards,
 

mYthorON

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Re: Flash Memory

must said:
I heard about the Samsung NAND flash bug before, but could you tell us more about this?

Maybe the bug is inside the chip, so I think you can transfer to use NAND flash-based card, such as Compact Flash, SD, MMC......

In fact, it is inevitable to meet bad block in NAND usage, while NOR is more stable for its high cost.

You can never balance the performance and price to a golden point, but I think you can have more options in the future. You know, ST has released Samsung NAND compliant flash chips, maybe you can try it. Furthermore, M-system's DISKONCHIP is a good choice, however, it is Toshiba NAND inside.
 

nvp

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Re: Flash Memory

elecracker said:
Which one is the fastest ?
Hi Friend,
AMD Flash memory also good.
Regards
NVP
 

larry

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Re: Flash Memory

BlueSky68 said:
Have you guys check Toshiba and Micron for Flash memory?
They all have a wide range of selections.

Regards,

The flash (NAND type flash) is best chose with Toshiba
 

aegean.chou

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Re: Flash Memory

Hitachi AND flash is good also, max cap 1G now!
 

micro325

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Re: Flash Memory

Almost flashmemory has read access time 35ns
and dummy time is 15ns.
so, for 1byte read minimum 50ns is required.

maximum read. (if no gluelees time)
1byte = 50ns
1Kbyte ~= 50us
1Mbyte ~= 50ms

but there is needed very large erase time(2ms~) and busy time.

So, minumum time for 10MByte read is one second.
 

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