CY62147G30-45ZSXIT is a 4-Mbit (256K × 16) asynchronous CMOS SRAM with embedded ECC for single-bit error correction. It operates at 2.2 V to 3.6 V over -40°C to 85°C and supports 45 ns access. Automatic power-down cuts standby to 3.5 µA typical (8.7 µA max). ICC is 15 mA typical (20 mA max) at fmax. Byte enables (BLE/BHE) support upper/lower byte access. 44-pin TSOP II, tape-and-reel.