Why the 200 MHz clock and 3.2 ns access define this SRAM's fit
The CY7C1354CV25-200AXC is a 9Mbit synchronous SRAM from Infineon's NoBL (No Bus Latency) family, organized 256K x 36 and clocked at 200 MHz with a 3.2 ns access time. This combination means the part can sustain back-to-back read and write operations without dead cycles on the bus — the NoBL pipeline eliminates the turnaround cycle that standard synchronous SRAMs insert between a read and a write. For a system architect evaluating memory bandwidth against a 36-bit data bus, the 200 MHz clock yields a theoretical peak of 800 MB/s (200 MHz × 4 bytes per cycle), though the actual throughput depends on the controller's ability to keep the pipeline full. The 3.2 ns access time is the time from clock edge to data-out valid — it sets the hold margin on the receiving FPGA or ASIC.
Supply rails and temperature — the operating envelope
The core supply is 2.375 V to 2.625 V (2.5 V nominal with 5 % margin). This narrow range means the board-level regulator must hold regulation within ±62.5 mV under load transients — a standard 2.5 V LDO with 1 % accuracy and 50 mV dropout meets the requirement, but a switching regulator needs tight output tolerance or a post-filter. For industrial or automotive applications requiring extended temperature, a different suffix in the CY7C1354 family would be needed.
Package footprint and PCB layout considerations
The 0.5 mm pitch requires controlled impedance traces for the 36-bit data bus at 200 MHz — typical microstrip or stripline with 50 Ω single-ended or 100 Ω differential for the clock pair, with length matching across the byte lanes to keep skew within the 3.2 ns access window. Decoupling should follow the manufacturer's recommendation: one 0.1 µF ceramic per VDDQ pin pair, plus a 10 µF bulk capacitor near the supply entry.
Infineon lists the CY7C1354CV25-200AXC as Active. That means the manufacturer continues to support new orders through its authorized channel. For volume BOM positions, the part can be specified into the material plan with confidence that the factory pipeline is open.