Can We Use 933MHz or 1GHz Memory instead of 800MHz Memory For iMAX6Q HW Design ?

[peteramond]

Hi All,

I'm using iMAX6Q processor based hardware design which is most similar to nitrogen6_max development board.

I used 800MHz 4Gb 256M x 16 Alliance memory module for my original design. Manufacturer part number - AS4C256M16D3A-12BCN (800MHz)

Due to the end of life reason I'm going to shift for following Micron memory modules. 

MT41J256M16LY-091G:N  -  SDRAM - DDR3 Memory IC 4Gb (256M x 16) Parallel 1GHz 96-FBGA  (933MHz)

MT41K256M16TW-107 AAT:P  -  SDRAM - DDR3L Memory IC 4Gb (256M x 16) Parallel 933MHz 20ns 96-FBGA (8x14)   (1GHz)

Is there any conflict to use above memory modules with my hardware design (With iMAX6Q processor)?

Regards,

Peter.

[twmemphis]

There are many DRAM manufacturers you can choose from. All DDR3 memory components are made to the same JEDEC standard specification and will be compatible to each other, as long as they have the same voltage, capacity and bit-width. What you need is a 4 Gigabit DDR3 in x16 (which comes in BGA96 package) that can run at least 800Mhz or faster. As you are running it at 1.5V, you can also select DDR3L (1.35V) parts, because these are backward compatible.

However, those Micron parts you named I would not recommend.

MT41J256M16LY-091G:N is a "gDDR3-2000" device, which is totally exotic and not easily available. Per my information, the revision :N will also go EOL in year 2018.

The MT41K256M16TW-107 AAT:P is an "automotive grade 2" DDR3 chip for which you will for sure pay much too much money and it is also not a typical "off the shelf" device.

If you want parts that you can easily get in smaller or bigger quantity at any time without much leadtime, better look at IM4G16D3FABG-125  from Intelligent Memory, the new NT5CC256M16EQ-EK from Nanya or the K4B4G1646E-BYMA from Samsung.

I can tell you that the distributor Memphis Electronic (specialized in memory components) with it's offices all around the world always has DDR3 devices in stock, from 1 Gigabit to 8 Gigabit capacity. Give them a call, or try to search above part numbers from other distributors.

Regards,

Thorsten

[art]

Yes, it is possible to use memories with higher access speed, there is no any conflict here.

Have a great day,
Artur

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