72 Mbit QDR II+ at 500 MHz — what this SRAM does
The Infineon CY7C1565KV18-500BZXC is a 72 Mbit synchronous SRAM using the QDR II+ architecture, organized 2M x 36 and clocked at 500 MHz. QDR II+ means separate read and write data ports, each running at double data rate, so the device can sustain a read and a write every clock cycle without bus-turnaround dead cycles. That throughput is what makes it a fit for high-bandwidth buffer applications — think switch fabric packet memory, traffic managers, or network processor look-aside storage where back-to-back access matters more than raw density.
Supply and temperature — the operating envelope
Package and rework reality
The 165-ball FBGA (13 x 15 mm) is a fine-pitch BGA requiring a preheater and controlled reflow profile. The package is surface-mount only.
Infineon lists this part as Active, so there is no end-of-life pressure on the BOM.