72Mbit DDR II+ SRAM at 450 MHz — what the clock rate buys you
The CY7C1570KV18-450BZXC is a 72Mbit synchronous SRAM from Infineon using DDR II+ architecture, clocked at 450 MHz. That clock rate defines the data rate on the parallel interface — double-data-rate means two transfers per clock cycle, so the memory bus moves 36 bits per edge across the 2M x 36 organization. For a system architect sizing a packet buffer or a high-speed lookup table, the 450 MHz figure sets the peak bandwidth and the timing closure target for the PCB. The part runs from a 1.7V to 1.9V supply rail, which keeps I/O levels in the 1.8V range common on modern FPGAs and ASICs.
Infineon has placed the CY7C1570KV18-450BZXC in Last Buy status. That means the manufacturer's final production window is open — once it closes, the part will no longer be available through the factory channel. For a procurement buyer filling a BOM line, this is the trigger to secure lifetime buy quantities or to qualify a replacement.
165-FBGA — footprint and rework notes
The package is a 165-ball FBGA, 13x15 mm body, surface-mount only. The ball pitch and array pattern are standard for this density grade of synchronous SRAM.