250 MHz QDR II SRAM for high-throughput buffer applications
The Infineon CY7C1411KV18-250BZXC is a 36 Mbit synchronous QDR II (Quad Data Rate) SRAM organized as 4M x 8 bits, clocked at 250 MHz for a peak read/write bandwidth that suits high-speed networking buffers, packet processing, and cache applications where low-latency random access is critical. It operates from a 1.7V to 1.9V core supply and uses a parallel memory interface, which means the power rail needs to be clean and within that window — nominal 1.8V with ±100 mV margin is the design target. The 165-ball FBGA package (13x15 mm body) is a surface-mount footprint that requires careful PCB layout for signal integrity at 250 MHz; the datasheet's recommended decoupling and trace impedance guidelines should be followed closely.