CYM1465A

The CYM1465A is a high-performance CMOS static RAM organized as 512K words by 8 bits. Easy memory expansion is provided by an active LOW chip enable (CE), an active LOW Output Enable (OE), and three-state drivers. The CYM1465A has an automatic power-down feature that reduces power consumption by more than 99% when deselected.

Writing to the SRAM is accomplished when the chip select (CS) and write enable (WE) inputs are both LOW. Data on the eight input/output pins (I/O0 through I/O7) of the CYM1465A is then written into the memory location specified on the address pins (A0 through A18). Reading from the device is accomplished by taking chip select (CE) and output enable (OE) LOW while write enable (WE) remains inactive or HIGH. Under these conditions, the contents of the memory location specified on the address pins (A0 through A18) will appear on the eight appropriate data input/output pins (I/O0 through I/O7).The eight input/ output pins (I/O0 through I/O7) are placed in a high impedance state when the CYM1465A is deselected (CE HIGH), the outputs are disabled (OE HIGH), or during a write operation (CE LOW, and WE LOW).

The CYM1465A is available in a 32-pin 600-mil wide body PDIP package.