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Author Topic: SRAM question  (Read 1465 times)

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Offline tristantechTopic starter

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SRAM question
« on: March 08, 2010, 07:38:42 PM »
Hello. I am doing a project that requires a lot of memory and I'm looking for a 16 MB (128 Mbit) SRAM chip. However, all i can find are DRAM chips, which are no good. Does anybody now of a part number or if these chips even exist?

Thanks in advance.
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Offline z.s.tar.gz

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Re: SRAM question
« Reply #1 on: March 09, 2010, 08:32:31 AM »
I can't find anything above a 64Mbit chip which is 61 bucks for one.
I recommend using 8 separate 16Mbit chips which are about 13 bucks each here. Why can't you use dram?
Save yourself the typing. Just call me Zach.

Offline chelmi

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Re: SRAM question
« Reply #2 on: March 09, 2010, 09:04:57 AM »
Why can't you use dram?

DRAM needs to be refreshed (read and write the value) periodically.

Offline Soeren

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Re: SRAM question
« Reply #3 on: March 10, 2010, 01:30:40 PM »
Hi,

Hello. I am doing a project that requires a lot of memory and I'm looking for a 16 MB (128 Mbit) SRAM chip. However, all i can find are DRAM chips, which are no good. Does anybody now of a part number or if these chips even exist?
Go with flash memory instead (you might call it the SRAM of today).
They come in lots of different sizes, but if you just need one, the cheapest alternative is to break apart an old USB memory "pen" and find the datasheet for the flash chip(s) in it.

Samsung and Toshiba are some of the major players in the flash chip market if you need to buy a new chip.

If speed isn't the priority and if you have an old SmartMedia card, that would be useable too, or get one of the lowest capacity SD cards (around 1GB these days) and use SPI to talk to them.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline z.s.tar.gz

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Re: SRAM question
« Reply #4 on: March 10, 2010, 01:31:10 PM »
DRAM needs to be refreshed (read and write the value) periodically.

I guess you learn something new every day.
Save yourself the typing. Just call me Zach.

 


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