Standard SRAM, 512KX8, 10ns, CMOS, PDSO36, 0.400 INCH, LEAD FREE, PLASTIC, SOJ-36
K6R4008C1D-KI10
4Mb SOJ Surface Mount Asynchronous SRAM 512000 Words 8b 5V 75mA -40°C to 85°C
SEMI-MEMORY-4M Fast SRAM