CY62147EV18LL-55BVXIT is a 4-Mbit (256 K × 16) CMOS SRAM in a Pb-free 48-ball VFBGA, specified for 55 ns access. It operates from 1.65 V to 2.25 V over -40°C to 85°C and uses CE/OE/WE plus BLE/BHE byte enables. ICC is 2.5 mA max at 1 MHz and 20 mA max at f = fmax. Automatic power-down when deselected limits standby ISB to 7 µA max; data retention is supported at VCC = 1.0 V with ICCDR 5 µA max.