Obsolete — last-time-buy window closed
The CY7C1418BV18-167BZC: The manufacturer's last-time-buy has passed; remaining stock is held by independent distributors and surplus channels. For a BOM that depends on this exact 165-LBGA footprint and 1.7V-1.9V rail, the only sourcing path is through verified surplus inventory. Date-code provenance and lot traceability should be confirmed at RFQ — mystery stock surfacing years after the official EOL demands extra scrutiny.
36Mbit DDR II — what the 167 MHz clock buys
At 167 MHz, this DDR II SRAM delivers a double-data-rate transfer on each clock edge — the effective data rate is 333 MT/s on the parallel bus. The 2M x 18 organisation means the address space is 2 million words deep, each word 18 bits wide (16 data + 2 parity/ECC bits if used). A clean 1.8V rail with <5% ripple is needed to stay within the operating window; the commercial temperature range (0°C to 70°C) limits this part to indoor, non-condensing environments.
165-ball BGA — board-fit checklist
The CY7C1418BV18-167BZC comes in a 165-ball LBGA (supplier device package 165-FBGA, 15x17 mm body). The ball pitch is 1.0 mm — a standard 4-layer PCB with via-in-pad can fan out the inner rows. The package is surface-mount only; no socketed alternative exists. Because the part is volatile, any board spin must include a backup power path (battery or supercap) if data retention across power loss is required.