18b Synchronous RAM, 256000 Words, 40MHz, Parallel Interface, LBGA Package
IDT 4Mb SDR RAM, 40MHz, 3.3V, LFBGA, Surface Mount
SRAM Chip Sync Dual 3.3V 2.25M-Bit 128K x 18 15ns/4.2ns 256-Pin CABGA T/R
SRAM Chip Sync Dual 3.3V 4.5M-Bit 256K x 18 15ns/4.2ns 256-Pin CABGA
SRAM Chip Sync Dual 3.3V 4M-Bit 256K x 18 15ns/4.2ns 256-Pin CABGA T/R