200 MHz NoBL synchronous SRAM — the timing-critical cache buffer
The CY7C1470BV33-200AXI is a 72Mbit synchronous SRAM organised as 2M x 36, clocked at 200 MHz with a 3 ns access time from the clock edge. That 200 MHz clock rate means the part can sustain one read or write per cycle — no dead cycles — which is exactly what a high-throughput FIFO or packet buffer demands when the FPGA or ASIC is running a full-rate data path. It belongs to Infineon's NoBL (No Bus Latency) family, which eliminates the turnaround cycle between read and write operations. For a system architect sizing the memory hierarchy, this translates to a 100 % bus utilisation on back-to-back mixed transactions — no stall inserted by the memory controller.
Supply rail and temperature range — industrial endurance
The 100-TQFP (14x20 mm) package uses a 0.50 mm pitch — the PCB layout engineer should budget a 4-layer board for clean fan-out of the 36 data lines plus address and control, and place a 100 nF decoupling cap within 2 mm of each supply pin pair.
Last Buy — the sourcing window is closing
Infineon lists the CY7C1470BV33-200AXI as Last Buy. This is the final procurement opportunity; after the last-order date passes, the part becomes obsolete with no further production. A component engineer should immediately assess the lifetime buy quantity against the remaining production schedule and identify a qualified second-source or pin-compatible alternative before the window closes. The base product number CY7C1470 covers multiple speed grades and temperature variants in the same 100-TQFP footprint. If a speed downgrade or commercial-temperature variant is acceptable, an alternative within the same series may extend the usable inventory — but confirm the exact timing and temperature requirement against the datasheet before substituting.