CY62147EV30LL-45B2XI is a 4-Mbit (256K × 16) CMOS SRAM for portable, battery-powered systems, with 45 ns access. It operates from 2.2 V to 3.6 V across −40°C to +85°C and supports byte writes via BLE/BHE. Low-power operation includes automatic CE power-down, 2.5 µA typical standby (7 µA max), and 3.5 mA typical active current at 1 MHz. It is supplied in a Pb-free 48-ball VFBGA with dual chip enable.