K4D623238B-GC - 64mbit Ddr Sdram 512K x 32Bit x 4 Banks Double Data Rate Synchronous RAM with Bi-directional Data Strobe and DLL (144-Ball FBGA) In this document: K4D623238B-GC40, K4D623238B-GC33, K4D623238B-GC50, K4D623238B-GC55, K4D623238B-GC60, K4D623238B-GC45, K4D623238B-GL33, K4D623238B-GL40, K4D623238B-GL45, K4D623238B-GL50, K4D623238B-GL55, K4D623238B-GL60