18 Mbit NoBL synchronous SRAM — what this part does
It operates with a 200 MHz clock and delivers a 3 ns access time, eliminating dead cycles between read and write turns on the bus. The part is designed for high-throughput cache, buffer, and lookup-table applications in networking, telecom, and industrial control systems where back-to-back transactions without wait states are required.
200 MHz clock and 3 ns access — timing budget impact
The 200 MHz clock rate sets a 5 ns cycle period. With a 3 ns access time from clock edge, the output data becomes valid within 60% of the cycle, leaving about 2 ns of setup margin for the receiving logic. This timing headroom is tight but workable for FPGA or ASIC interfaces running at the same clock; any additional trace delay or load capacitance beyond the datasheet derating curve will cut into that margin. For designs that already budget 1.5 ns for PCB flight time, the 3 ns access keeps the bus closure achievable without adding pipeline stages.
No separate core or I/O voltage is needed — one 3.3 V plane powers the entire device.
Housed in a 100-pin TQFP (14x20 mm body, 0.5 mm pitch), the part is a surface-mount package that reflows on standard FR-4 with a 0.5 mm pitch land pattern. The 100-TQFP footprint is shared across other NoBL density variants, so a board layout can be reused if a different depth is needed later.
Last Buy — procurement timeline
Infineon lists the CY7C1370KV33-200AXI as Last Buy. This means the manufacturer has issued a product discontinuance notice with a final order window. Once that window closes, no new factory orders are accepted, and only existing distributor or broker inventory remains available. No official replacement part number is published in the lifecycle record, so any substitution requires requalification.