ddr3 Micron presets

[ramsoffer_123]

hi Everyone,

Im working with CYCLONE V FPGA. we want to combine ddr3 in our design.

my question is about the presets in the mega wizard ip.

our board design chose ddr3 component part number: MT41K128M16JT-125 IT:K TR

the closest preset that i found in the mega wizard for this one is: MT41J128M16HA-125.

1) the question is if there is a difference between the components in configuration?

in internal routing? or something else that i am missing.

2)also what is the difference between HA and JT?

3)if i will load the configuration of MT41J128M16HA-125 preset on the MT41K128M16JT-125 IT:K TR component it is ok?

appreciate your answers.

BR,

Ram. 

[sstrell]

You'd probably need to check the data sheets from Micron to find the differences.  I wouldn't use a preset that's for a specific device without confirming in the device's datasheet that the presets match up and will work for my different device.

Perhaps you can use the preset as a starting point and edit it as needed for your device.  You could then save the adjusted parameters as a new preset for future designs.

[AdzimZM_Intel]

Hi Ram,

1) the question is if there is a difference between the components in configuration?

in internal routing? or something else that i am missing.

• This preset will help to fill up the memory configuration in the IP that related to memory device.

2)also what is the difference between HA and JT?

• This marking is referring to FBGA package. You need to refer to memory datasheet for the details.
• You can check this link for the memory datasheet: https://media-www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/2gb_1_35v_ddr3l.pdf?rev=4a2dca2a48b042fc92188aad62656cec

3)if i will load the configuration of MT41J128M16HA-125 preset on the MT41K128M16JT-125 IT:K TR component it is ok?

• It's better to confirm the memory configuration with the memory datasheet first.
• Can get it here as well: https://www.micron.com/products/dram/ddr3-sdram/part-catalog/mt41k128m16jt-125

Regards,

Adzim

[AdzimZM_Intel]

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[ramsoffer_123]

thank you for the reply.