CY62138FV30LL-45ZAXI 0 is a high performance CMOS static RAM organized as 256K words by 8 bits. This device features advanced circuit design to provide ultra low active current. This is ideal for providing More Battery Life™ in portable applications such as cellular telephones. The device also has an automatic power down feature that significantly reduces power consumption. Place the device into standby mode reducing power consumption when deselected. To write to the device, take chip enable and write enable inputs LOW. Data on the eight I/O pins is then written into the location specified on the address pins. To read from the device, take chip enable and output enable LOW while forcing write enable HIGH. Under these conditions, the contents of the memory location specified by the address pins appear on the I/O pins. The eight input and output pins are placed in a high impedance state when the device is deselected, the outputs are disabled, or during a write operation.