72Mbit QDR II SRAM for high-bandwidth buffer applications
The Infineon CY7C1512V18-200BZI is a 72Mbit Quad Data Rate (QDR) II synchronous SRAM organized as 4M x 18 bits, clocked at 200 MHz. This is a volatile SRAM in a 165-ball FBGA package (15x17 mm) for surface-mount assembly.
The 200 MHz clock rate defines the data transfer window. In a QDR II architecture, data is clocked on both edges of the clock on separate read and write ports, effectively delivering 400 MT/s per port. For a 4M x 18 configuration, this provides 7.2 Gbit/s of aggregate bandwidth on each port. That throughput is what drives the part into applications like switch fabric buffers, traffic managers, and high-speed FIFO replacements where back-to-back transactions without dead cycles matter.
Infineon (formerly Cypress) has discontinued the CY7C1512V18-200BZI and there is no factory-direct supply. The only channel for procurement is independent distribution — surplus inventory, new-old-stock, or broker-sourced lots. Each unit should be verified for date-code consistency and marking integrity before acceptance into production or repair stock.
Package and assembly considerations for the 165-FBGA
This is a standard fine-pitch BGA footprint, but the 15x17 mm body is non-square — ensure the PCB land pattern matches the supplier device package dimensions.