I designed a board with an i.MX53 and 1Gbyte of LPDDR2 using Micron memory, MT42L256M32D2 (16Meg x 32 x 8 banks x 2 die). Now I was asked to increase the memory to 2Gbytes. Unfortunately, Micron has not issued the MT42L512M32D4 (32 Meg x 16 x 8 banks x 4 die)...
Does anybody know how to connect several LPDDR2 chips to the SDRAM controller of the i.MX53 (there is only one SDRAM channel with only 2 chip selects on the i.MX53) ?
Any help would be appreciated,