IDT 7201LA80TDB 4.5Kb Unidirectional Asynchronous SRAM CDIP-37
CDIP-28, Tube
4Kb CDIP 9b Bidirectional SRAM, 5V, 5.5V, 100mA, 10MHz, -55°C to 125°C
IDT 7201LA50TDB 4.5Kb Asynchronous SRAM, CDIP, 5V, -55°C to 125°C
FIFO Mem Async Dual Depth/Width Uni-Dir 512 x 9 28-Pin CDIP