CY7C028-15AXI

The Cypress Semiconductor CY7C028-15AXI is a high-speed, low-power CMOS dual-port static RAM with a 64K x 16 organization, providing 1Mbit of memory. It features true dual-ported memory cells allowing simultaneous access to the same memory location, making it suitable for interprocessor and multiprocessor designs.

Key electrical specifications include a maximum access time of 15 ns and a write cycle time of 15 ns. The device operates with a supply voltage range of 4.5V to 5.5V. It offers low operating power with a typical active current of 180 mA and a typical standby current of 0.05 mA.

This asynchronous SRAM includes on-chip arbitration logic and semaphores for software handshaking between ports, as well as INT flags for port-to-port communication. It is available in a 100-pin TQFP package, designed for surface mounting.

Application areas include communications status buffering and dual-port video/graphics memory. The device supports expandable data bus configurations using Master/Slave chip select.