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Multiple SDRAM chip support

Question asked by Paul Nichols on Mar 16, 2018
Latest reply on Mar 19, 2018 by Yuri Muhin

Can multiple SDRAM chips be added to the RT1050 (eg: MIMXRT1051DVL6A) external memory interface to expand the amount of addressable RAM? For my application I am needing at least 64MB of RAM and to make this cost effective is seems 2 x 32MB (16MB x 16 bit width) chips would be best.

 

From the datasheet it seems possible using multiple CS line but the following statement from a supporting RT1050 introduction slide deck (page 17 - https://www.nxp.com/docs/en/supporting-information/i.MX-RT1050-Supporting-Inf.pdf) seems to indicate support for only a single 16 bit width DRAM is possible.

 

"Support single x16 DRAM chip or dual x8 DRAM chip" 

 

Just needing to confirm I can achieve 64MB (or even 96MB) of extern SDRAM on this platform. 

 

Thanks

 

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