KM68FV1000, KM68FS1000, KM68FR1000 Family Document.
Samsung Semiconductor
KM68FR1000 - CMOS SRAM
KM68FV1000, KM68FS1000, KM68FR1000 Family Document Title 128K x8 bit Super Low Power and Low Voltage Full CMOS Static RAM CMOS SRAM Revision History.