CY7C199-20PC FIFO 256K SRAM by Cypress Semiconductor. Organisation: 32K x 8 (32,768 words by 8 bits) Access time: 45nS (Max) Package: 28-pin (narrow) DIP Download Cypress Semiconductor CY7C199-45DMB .pdf datasheet: Status: NOS (New Old Stock) Individually tested components: YES ( Thourogh 7-pass test routine) RoHS compliant: no