CY7C12451KV18- 36-Mbit QDR II SRAM 4-Word Burst Architecture
CY7C1245KV18- 36-Mbit QDR II SRAM 4-Word Burst Architecture
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CY7C1248KV18/CY7C1250KV18
36-Mbit DDR II+ SRAM Two-Word Burst Architecture (2.0 Cycle Read Latency)
36-Mbit DDR II+ SRAM Two-Word Burst Architecture (2.0 Cycle Read Latency)
Features
■ 36-Mbit density (2M × 18, 1M × 36) ■ 450 MHz clock for high bandwidth ■ Two-word burst for reducing address bus frequency ■ Double data rate (DDR) interfaces (data transferred at
900 MHz) at 450 MHz ■ Available in 2.0 clock cycle latency ■ Two input clocks (K and K) for precise DDR timing
❐ SRAM uses rising edges only ■ Echo clocks (CQ and CQ) simplify data capture in high speed
systems ■ Data valid pin (QVLD) to indicate valid data on the output ■ Synchronous internally self-timed writes ■ DDR II+ operates with 2.