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Old 09-29-2019, 07:37 AM   #1
Richi_el
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Default Question for MMC experts

do somebody know the difference between this Micron MMC ??

MTFC8GAKAJCN-4M IT (JY997) and MTFC8GLDEA-1M WT (JWA07)

both are

FLASH - NAND IC 64 Gb (8 G x 8) MMC 153-VFBGA (11,5x13)

there shouldnt be a difference same pinout ,same size, .... am i right?

is it necassary to take exactly the same mmc when u have to change the mmc couse of a fault ?
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Old 09-29-2019, 12:58 PM   #2
khaahk
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Default Re: Question for MMC experts

https://media.digikey.com/pdf/Data%2...MMC_Series.pdf
page 3
- flash component
- controller

there should not be a difference but...
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Old 09-30-2019, 08:21 AM   #3
Richi_el
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Default Re: Question for MMC experts

Hello thnx for reply , i should update the case.....

ive seen there is a difference between that 2 Mmc, one is 8 the other 64GB

I have now another problem, when i desolder the JY995 (8GB MMC) and try to backup it with the RT809H programmer the software and partitions on the JY995 are destroyed and i cant make a backup(see pic 1).....

Normally the software is linux based and there should be some partitions like on (pic 2)


Can somebody tell me another option without killing the mmc ?
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Old 09-30-2019, 12:08 PM   #4
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Default Re: Question for MMC experts

From datasheet i read that these mmc-s are the same size, only difference is different flash type and controller - but this is only internal difference.
Some background info, what device, what was the initial problem you are trying to solve.
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Old 10-01-2019, 12:27 AM   #5
Richi_el
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Default Re: Question for MMC experts

I will make a update tonight
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