256KX4 Datasheet(PDF) - K6R1004C1A - Samsung semiconductor

Manufacturer	Part #	Datasheet	Description
Samsung semiconductor	K6R1004C1A	127Kb/8P	256Kx4 High Speed Static RAM(5V Operating), Revolutionary Pin out
	K6R1004V1C-C	137Kb/9P	256Kx4 Bit (with OE) High-Speed CMOS Static RAM(3.3V Operating).
	K6R1004C1D	188Kb/9P	256Kx4 Bit (with OE) High-Speed CMOS Static RAM(5.0V Operating).
	K6R1004C1C	101Kb/9P	256Kx4 Bit (with OE) High-Speed CMOS Static RAM(5.0V Operating).
	KM641003C	127Kb/8P	256Kx4 Bit (with OE) High-Speed CMOS Static RAM(5.0V Operating)
	K6R1004C1B	128Kb/8P	256Kx4 Bit (with OE) High Speed Static RAM(5.0V Operating), Revolutionary Pin out
	KM641003B	130Kb/8P	256Kx4 Bit (with OE) High Speed Static RAM(5.0V Operating), Revolutionary Pin out
	K6E1004C1B	134Kb/9P	256Kx4 Bit (with OE) High Speed Static RAM(5V Operating), Evolutionary Pin out
	KM641001B	134Kb/9P	256Kx4 Bit (with OE) High Speed Static RAM(5V Operating), Evolutionary Pin out
	KM641003A	123Kb/8P	256Kx4 High Speed Static RAM(5V Operating), Revolutionary Pin out Operated at Commercial and Industrial Temperature Range

256KX4 Datasheet, PDF