SRAM Chip Async Single 5V 4M-bit 256K x 16 45ns 44-Pin TSOP-II
Standard SRAM, 32KX8, 45ns, CMOS, PDSO44, 0.400 INCH, LEAD FREE, TSOP2-44
Standard SRAM, 256KX16, 45ns, CMOS, PDSO44
870-62C25616BL45TLIT