IDT 4Mb SDR RAM, 2-Port Parallel Interface, 40MHz, LBGA Package
SRAM Chip Sync Dual 2.5V 4.5M-Bit 128K x 36 15ns/4.2ns 256-Pin CABGA Tray
SRAM Chip Sync Dual 2.5V 4.5M-Bit 128K x 36 15ns/4.2ns 256-Pin CABGA T/R