The CY7C1516KV18, CY7C1527KV18, CY7C1518KV18, and CY7C1520KV18 are 1.8V Synchronous Pipelined SRAM equipped with DDR-II architecture. The DDR-II consists of an SRAM core with advanced synchronous peripheral circuitry and a 1-bit burst counter. Addresses for read and write are latched on alternate rising edges of the input (K) clock. Write data is registered on the rising edges of both K and K. Read data is driven on the rising edges of C and C if provided, or on the rising edge of K and K if C/C are not provided. Each address location is associated with two 8-bit words in the case of CY7C1516KV18 and two 9-bit words in the case of CY7C1527KV18 that burst sequentially into or out of the device. The burst counter always starts with a "0" internally in the case of CY7C1516KV18 and CY7C1527KV18. On CY7C1518KV18 and CY7C1520KV18, the burst counter takes in the least significant bit of the external address and bursts two 18-bit words in the case of CY7C1518KV18 and two 36-bit words in the case of CY7C1520KV18 sequentially into or out of the device.