LP62S2048-I series is a 256K X 8-bit low voltage CMOS SRAM with a power supply voltage range of 2.7V to 3.3V, 70/100ns (max) access time, low power version and very low power version operating and standby currents of 30mA (max) and 50µA (max) and 10µA (max), no clock or refresh required, all inputs and outputs are directly TTL compatible, common I/O using three-state output, output enable and two chip enable inputs for easy application, 2V (min) data retention voltage, and 32-pin SOP, TSOP, TSSOP (8 X 13.4mm) and 36-pin CSP packages are available