Asynchronous SRAM; Organization (word): 8M / 4M; Organization (bit): x 8 / x 16; Memory capacity (bit): 64M; Access time (ns): 70; Supply voltage (V): 2.7 to 3.6; Operating temperature (°C): -40 to 85; Package: TSOP (48); Remarks: x 8 / x 16 switching type