CY7C2168KV18/CY7C2170KV18 18-Mbit DDR II+ SRAM Two.
Cypress Semiconductor
CY7C2170KV18 - 18-Mbit DDR II+ SRAM Two-Word Burst Architecture
CY7C2168KV18/CY7C2170KV18 18-Mbit DDR II+ SRAM Two-Word Burst Architecture (2.5 Cycle Read Latency) with ODT 18-Mbit DDR II+ SRAM Two-Word Burst Arch.