CY62148EV30

The CY62148EV30 is a high performance CMOS static RAM organized as 512K words by 8 bits. CY62148EV30 features advanced circuit design to provide ultra low active current.This is ideal for providing More Battery Life™ (MoBL^®) in portable applications such as cellular telephones. The device also has an automatic power down feature that significantly reduces power consumption. Placing the device into standby mode reduces power consumption by more than 99% when deselected (CE HIGH). The eight input and output pins (IO₀ through IO₇) are placed in a high impedance state when the CY62148EV30 is deselected (CE HIGH), the outputs are disabled (OE HIGH), or during a write operation (CE LOW and WE LOW).

To write to the device, take Chip Enable (CE) and Write Enable (WE) inputs LOW. Data on the eight IO pins (IO₀ through IO₇) is then written into the location specified on the address pins (A₀ through A₁₈).

To read from the CY62148EV30, take Chip Enable (CE) and Output Enable (OE) LOW while forcing Write Enable (WE) HIGH.  Under these conditions, the contents of the memory location specified by the address pins appear on the IO pins.