MRCRON Double Data Rate (DDR) SDRAM MT46V64M4 16 Meg x 4 x 4 banks MT46V32M8 8 Meg x 8 x 4 banks MT46V16M16 4 Meg x 16 x 4 banks Manual This document introduces the features and characteristics of Micron's 256Mb: x4, x8, x16 DDR SDRAM.