4Mb SRAM 512Kx8 Asynchronous 55ns 3.3V SOP
Standard SRAM, 512KX8, 55ns, CMOS, PDSO32, 0.450 INCH, LEAD FREE, PLASTIC, SOP
4Mb SRAM Asynchronous 55ns 2.5V-3.6V 85°C Surface Mount