72Mbit NoBL synchronous SRAM — BOM-fit for high-bandwidth cache
The CY7C1470BV33-200BZIT is a 72Mbit synchronous SRAM from Infineon's NoBL (No Bus Latency) series, organized as 2M x 36 and clocked at 200 MHz with a 3 ns access time.
200 MHz clock, 3 ns access — timing margin for the memory controller
The 200 MHz clock frequency defines the maximum data rate on the parallel interface — at this speed the 3 ns access time leaves roughly 2 ns of setup/hold margin after accounting for clock-to-output skew and board trace delay. The NoBL pipeline eliminates dead cycles between read and write turns, so back-to-back transactions sustain the full 200 MHz bandwidth without idle insertion. The 165-ball FBGA package (15x17 mm) requires a multi-layer PCB with controlled-impedance traces for the 36-bit data bus. Supply decoupling should follow the manufacturer's recommended capacitor placement per the datasheet layout guidelines to keep the 3.135V–3.6V rail within tolerance during burst operations.