Winbond W9751G6NB25I, SDRAM 512Mbit Surface Mount, 400MHz, 1.7 V to 1.9 V, 84-Pin VFBGA

The Winbond SDRAM is a 512M bits DDR2 SDRAM which is organized as 8,388,608 words, 4 banks, 16 bits. This device achieves high speed transfer rates for various applications.

Two data transfers per clock cycle
Edge-aligned with read data and centre-aligned with write data
DLL aligns DQ and DQS transitions with clock