This part is a kind of semiconductor called K4S281632F-UC75.

Function of this product has 128Mb F-die SDRAM.

Manufacturers : Samsung semiconductor

Image and pinout :

Some of the text within the PDF file :

SDRAM 128Mb F-die (x4, x8, x16) CMOS SDRAM 128Mb F-die SDRAM Specification tcom54 TSOP-II with Pb-Free e(RoHS compliant) w.DataSheRevision 1.2 ww August 2004 heetcom* Samsung Electronics reserves the right to change products or specification without notice. www.DataSRev. 1.2 August 2004 SDRAM 128Mb F-die (x4, x8, x16) Revision History Revision 1.0 (January, 2004) - First release. Revision 1.1 (May, 2004) • Added Note 5. sentense of tRDL parameter. Revision 1.2 (August, 2004) • Corrected typo. CMOS SDRAM Rev. 1.2 August 2004 SDRAM 128Mb F-die (x4, x8, x16) CMOS SDRAM 8M x 4Bit x 4 Banks / 4M x 8Bit x 4 Banks / 2M x 16Bit x 4 Banks SDRAM FEATURES • JEDEC standard 3.3V power supply • LVTTL compatible with multiplexed address • Four banks operation • MRS cycle with a [ ... ]

K4S281632F-UC75 PDF Datasheet Download