Standard SRAM, 4KX1, 25ns, CMOS, PDIP18, 0.300 INCH, DIP-18
Standard SRAM, 256KX1, 25ns, CMOS, PDIP24, 0.300 INCH, PLASTIC, DIP-24
Standard SRAM, 64KX1, 25ns, CMOS, PDIP22, 0.300 INCH, PLASTIC, DIP-22
