72Mbit DDR II+ SRAM at 450 MHz — what it does in the system
The CY7C1550KV18-450BZXC is a 72Mbit synchronous SRAM from Infineon, organized as 2M x 36, clocked at 450 MHz. It uses a DDR II+ interface — data transfers on both clock edges.
Infineon lists this part as Obsolete. The 165-FBGA (13x15 mm) footprint and 450 MHz timing are tightly coupled to the DDR II+ controller on the board — a drop-in replacement from another vendor is unlikely without a PCB spin or firmware re-timing. For BOM lines that still need this exact order code, we source through our independent distribution channel. The date-code and marking traceability are verified before shipment.
Package and supply — 165-FBGA, 1.8V rail
The supply range of 1.7V to 1.9V means a 1.8V nominal rail is required; a 1.5V-only board will not run this SRAM.
