NoBL pipeline — why the dead cycle disappears
Unlike conventional synchronous SRAMs that insert a dead cycle when switching from read to write (or write to read), NoBL allows back-to-back transactions with no idle clock. For a system running at 167 MHz, that means every clock cycle moves data — no bubbles in the pipeline. The memory is organized 2M x 36, which matches the 36-bit data path common in network processors, DDR memory controllers, and high-end FPGA interfaces that need a wide word without external byte-mux logic.
167 MHz clock and 3.4 ns access — timing budget reality
The 167 MHz clock frequency sets a 6 ns cycle period. The 3.4 ns access time leaves roughly 2.6 ns for board trace delay, clock skew, and setup time at the receiver — tight but workable with controlled-impedance routing under 4 inches. This part is not a candidate for a relaxed, multi-drop bus; it expects a point-to-point or low-load topology. At 167 MHz the flash wait-state logic is irrelevant here — SRAM has no wait states — but the output hold time relative to the clock edge still needs a signal-integrity check against the FPGA or ASIC input threshold. The 3.135V to 3.6V supply range gives about 5% margin on a nominal 3.3V rail, enough for a well-regulated POL converter but not for a shared 3.3V bus with heavy digital switching noise.
Package and footprint — 100-LQFP, surface-mount only
The CY7C1470BV33-167AXC comes in a 100-lead LQFP (14x20 mm body, 0.5 mm pitch). It is surface-mount only, so the board needs a 0.5 mm pitch land pattern with via-in-pad or dogbone fanout for the inner rows. No automotive or industrial cold-soak capability.
Lifecycle — active, no LTB on the horizon
No PCN or last-time-buy notice has been issued. The active status also means the manufacturer continues to support it with datasheets, IBIS models, and application notes — no scavenger-hunt for documentation.