Obsolete — what it means for sourcing
No last-time-buy window remains — the part is no longer available through the factory. Sourcing shifts entirely to the independent market: surplus inventory, broker channels, and verified stock from distribution partners who hold legacy SRAM.
The CY7C1314KV18-333BZC is a 18 Mbit synchronous SRAM using the QDR II (Quad Data Rate II) architecture. The memory is organized as 512K x 36, giving a 36-bit wide data bus that suits high-throughput applications like network packet buffers, cache memory for ASICs or FPGAs, and telecom line cards. The 333 MHz clock frequency means the device delivers a peak bandwidth of roughly 2.4 GB/s (333 MHz x 36 bits x 2 for DDR reads/writes, accounting for the separate read and write ports). That bandwidth matters when the design needs sustained back-to-back transactions without dead cycles — QDR II eliminates the bus-turnaround penalty of traditional SRAM by using dedicated read and write ports. The supply range is 1.7V to 1.9V, which aligns with 1.8V nominal core logic; the 165-ball FBGA (13x15 mm) footprint requires a multi-layer PCB with careful signal-integrity routing for the high-speed bus.
Package and temperature grade — design constraints
The 165-ball FBGA (13x15 mm) package is a fine-pitch BGA.