FIFO 256 X 9 CMOS PARALLEL FIF
IDT 7200 Series 36Kb 9b x 4Kx9 PDIP Dual I/O RAM
72Kb 9b Bidirectional Asynchronous SRAM, 28.5MHz, 5V, PDIP-14
IDT 7203L25TPI 18Kb 2KX9 Unidirectional SRAM
IDT 7200 Series 16Kx9 Asynchronous SRAM, 25ns Access Time, PDIP Package