SRAM Chip Async Single 3.3V 4M-Bit 256K x 16 15ns 48-Pin CABGA T/R
4Mb Asynchronous SRAM, 16b Word, 18b Address, 3.3V, TFBGA
SRAM 256Kx16 ASYNCHRONOUS 3.3V CMOS SRAM
4Mb Asynchronous SRAM, 16b Word, 3.3V, 170mA, TFBGA