This part is a kind of semiconductor called K4S641632H-UC75.

Function of this product has 64Mb H-die SDRAM Specification 54 TSOP-II.

Manufacturers : Samsung semiconductor

Image and pinout :

Some of the text within the PDF file :

SDRAM 64Mb H-die (x4, x8, x16) CMOS SDRAM 64Mb H-die SDRAM Specification 54 TSOP-II with Pb-Free (RoHS compliant) Revision 1.3 August 2004 * Samsung Electronics reserves the right to change products or specification without notice. Rev. 1.3 August 2004 SDRAM 64Mb H-die (x4, x8, x16) Revision History Revision 1.0 (September, 2003) • Finalized CMOS SDRAM Revision 1.1 (October, 2003) Deleted speed -7C and AC parameter notes 5. Revision 1.2 (May, 2004) • Added Note 5. sentense of tRDL parameter Revision 1.3 (August, 2004) • Corrected typo. Rev. 1.3 August 2004 SDRAM 64Mb H-die (x4, x8, x16) CMOS SDRAM 4M x 4Bit x 4 / 2M x 8Bit x 4 / 1M x 16Bit x 4 Banks Synchronous DRAM FEATURES • JEDEC standard 3.3V power supply • LVTTL compatible with multiplexed address • Four bank [ ... ]

K4S641632H-UC75 PDF Datasheet Download