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Can an MMC card be used in an industrial applications ???

 
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arunb



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Can an MMC card be used in an industrial applications ???
PostPosted: Fri May 22, 2009 2:21 am     Reply with quote

Hi,

I need to use a MMC card for a datalogger/control system in an industrial environment where temperatures can go upto 45 degC .

Can the MMC card work in such environments ??

I read the specs for the MMC card , the operating temperature is mentioned as between -25 degc/85 degc .

Does this apply to any MMC card ??

thanks
arunb
asmallri



Joined: 12 Aug 2004
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Re: Can an MMC card be used in an industrial applications ??
PostPosted: Fri May 22, 2009 6:52 am     Reply with quote

arunb wrote:
Hi,

I need to use a MMC card for a datalogger/control system in an industrial environment where temperatures can go upto 45 degC .

Can the MMC card work in such environments ??

I read the specs for the MMC card , the operating temperature is mentioned as between -25 degc/85 degc .

Does this apply to any MMC card ??

thanks
arunb


From a temperature perspective yes - MMC cards get far hotter than this sitting in portable appliances in cars. The ambient air temperature in my home town goes as high as this anyway.
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SherpaDoug



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PostPosted: Fri May 22, 2009 6:55 am     Reply with quote

The exact temperature range is up to the manufacturer of the card you are using. But 45C is not an extreme temperature. Look at datasheet from several manufacturers and see what the usual limits are.
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arunb



Joined: 08 Sep 2003
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RE:
PostPosted: Fri May 22, 2009 6:56 am     Reply with quote

Thanks for the reply,

Actually this is the first time I would be using the card for an industrial application, so I was worried.

Also is it essential to use the MMC card connector, or will a floppy type connector do??

thanks
arunb
asmallri



Joined: 12 Aug 2004
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Re: RE:
PostPosted: Fri May 22, 2009 7:24 am     Reply with quote

arunb wrote:
Thanks for the reply,

Actually this is the first time I would be using the card for an industrial application, so I was worried.

Also is it essential to use the MMC card connector, or will a floppy type connector do??

thanks
arunb


If you want reliability then use a proper MMC card holder, preferably the push-to-insert push-to-release type which will provide better/ensured seating of the card.
_________________
Regards, Andrew

http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!!
arunb



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RE:
PostPosted: Fri May 22, 2009 10:32 pm     Reply with quote

Thanks for the reply.

For my application the card need not be removed, so maybe it could be soldered directly to wires.

Will this damage the card ??

thanks
arunb
asmallri



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Location: Perth, Australia

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Re: RE:
PostPosted: Sat May 23, 2009 5:16 am     Reply with quote

arunb wrote:
Thanks for the reply.

For my application the card need not be removed, so maybe it could be soldered directly to wires.

Will this damage the card ??

thanks
arunb


Yes there is a good chance it would damage the card and it would cost more in labour to have solder the card than it will cost to include the socket. There are lots of products that have memory cards installed internally without the consumer being aware.
_________________
Regards, Andrew

http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!!
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