Standard SRAM, 512KX8, 55ns, CMOS, PDIP32, 0.600 INCH, DIP-32
Standard SRAM, 512KX8, 55ns, CMOS, PDSO32, 0.400 INCH, TSOP2-32
Standard SRAM, 512KX8, 55NS, Cmos, PDSO32, 0.525 Inch, SOP-32
