CY62146ELL-45ZSXIT is a 4-Mbit (256K × 16) CMOS static RAM for 5 V systems, specified for 45 ns access. It operates from 4.5 V to 5.5 V and supports byte writes via BHE/BLE with CE/OE/WE control and high-Z outputs when deselected. Ultra-low power includes 2.5 µA typ (7 µA max) standby with automatic CE power-down and 3.5 mA typ active current at 1 MHz, in a Pb-free 44-pin TSOP II.