SRAM Chip Async Dual 5V 64K-Bit 8K x 8 25ns 64-Pin TQFP
IDT 7005S25PFI 64Kb Dual UART Bridge, 26b Address Bus Width, 5V Supply
IDT 64Kb Parallel RAM, 26b Address Bus Width, 25ns Access Time, TQFP Package
