K4S560432J K4S560832J K4S561632J Synchronous DRAM.
Samsung semiconductor
K4S561632J - 256Mb J-die SDRAM Specification
K4S560432J K4S560832J K4S561632J Synchronous DRAM 256Mb J-die SDRAM Specification 54 TSOP-II with Lead-Free & Halogen-Free (RoHS compliant) INFORMA.