The CY7C1354C-200AXC is marked obsolete by Infineon.
NoBL architecture and synchronous interface
This is a 9 Mbit synchronous SRAM organized as 256K x 36, part of the NoBL™ (No Bus Latency) series. The NoBL pipeline eliminates the dead bus cycle between read and write operations — the controller can issue a write on the clock cycle immediately following a read without inserting an idle cycle, which matters for back-to-back throughput in cache or buffer applications. The parallel memory interface runs at a 200 MHz clock frequency, with a 3.2 ns access time from the clock edge. At this speed, the timing closure on the board depends on the trace length matching and the output load capacitance — the 3.2 ns spec is the datasheet maximum at the rated supply and temperature, not a typical number.
Supply, temperature, and package fit
The commercial temperature grade (0 °C to 70 °C) limits deployment to indoor, temperature-controlled environments; no industrial or automotive temperature range is offered on this variant. Packaged in a 100-TQFP (14x20 mm body, 0.5 mm pitch). The footprint matches the standard 100-pin LQFP/TQFP land pattern — the thermal pad on the underside should be connected to a ground plane for heat spreading, though the 9 Mbit density keeps the junction temperature well below the 70 °C ambient ceiling in normal airflow.