CY7C1643KV18/CY7C1645KV18, 144-Mbit QDR® II+ SRAM Four-Word Burst Architecture (2.0 Cycle Read Latency) | 赛普拉斯半导体
CY7C1643KV18/CY7C1645KV18, 144-Mbit QDR® II+ SRAM Four-Word Burst Architecture (2.0 Cycle Read Latency)
144-Mbit QDR® II+ SRAM Four-Word Burst Architecture (2.0 Cycle Read Latency)
- 450-MHz clock for high bandwidth
- 4 字突发降低地址总线频率
- 读和写端口均为双倍数据速率 (DDR) 接口（数据传输速率 900 MHz），工作频率 450 MHz
- Available in 2.0-clock cycle latency
- 两个输入时钟（K 和 K）用于精确 DDR 定时
- SRAM 仅使用上升沿
- Echo clocks (CQ and CQ) simplify data capture in high-speed systems
- 数据有效引脚 (QVLD) 表示输出上的有效数据
- 如需更多信息，请参阅 PDF 文档。
The CY7C1643KV18, and CY7C1645KV18 are 1.8-V synchronous pipelined SRAMs, equipped with QDR II+ architecture. 与 QDR II 架构类似，QDR II+ 架构也包含两个分立的端口：即用于访问内存阵列的读端口和写端口。读端口有专用的数据输出来支持读操作，写端口则有专用的数据输入来支持写操作。QDR II+ 架构具有单独的数据输入和数据输出，完全消除了公用 I/O 器件上存在的“转换”数据总线方面的需要。Each port is accessed through a common address bus. Addresses for read and write addresses are latched on alternate rising edges of the input (K) clock.
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Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you.
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