Cypress Semiconductor, CY7C109D-10ZXI

The Cypress Semiconductor CY7C109D series is a high-performance CMOS static RAM organized as 131,072 words by 8 bits. Easy memory expansion is provided by an active LOW chip enable, an active HIGH chip enable, an active LOW output enable and tri-state drivers.

High speed typically of 10 ns
Low active power
Automatic power down when deselected
TTL compatible inputs and outputs