Sharp LH79520 and 32 bit SDRAM

Dec 16, 2003 1 Replies

I am working on a microcontroller design using the LH79520. I would like to use the Micron MT48LC4M32B2 SDRAM which is 128Mb with a 32bit data path.



However in looking at the Sharp user manual, the sdram controller does not have a configuration listed for a 4Mx32 memory. The closest is 2Mx32. It looks like the 2Mx32 configuration should work for a 4Mx32, but I can not be certain.



I sent an email to Sharp MA asking if there is a valid configuration for 4Mx32, but have not received a reply.



Has anyone else attempted to use a 4Mx32 SDRAM with the LH79520 or gotten an answer from Sharp if this will work.


Have you looked at the following application note?

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It should work OK.

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