I have been unable to find a definitive answer for this in my searches. I would like to operated DDR2 SDRAM below its minimum specified clock rate, which is usually 125MHz (DDR250). I assume that the minimum clock rate specified has nothing to do with refreshing but has to do with the lowest rate at which the DRAM's DLL can lock. I am wondering if I can operate below the minimum rate if I turn off the DLL. As far as I can tell, the only purpose of the DLL is to ensure that the output DQS strobe and the data are aligned with the input clock, so if I don't care about that relationship I should be able to disable the DLL. Anybody know for sure?
-Kevin