72Mbit DDR II SRAM at 300 MHz — what it means for the bus
The CY7C1523JV18-300BZXC is a 72Mbit DDR II synchronous SRAM organized as 4M x 18 bits, clocked at 300 MHz.
300 MHz clock — bandwidth and timing headroom
At 300 MHz, the DDR II interface transfers data on both clock edges. The 0.45 ns access time is noted in the description.
Package and temperature — where it fits
The 165-FBGA (15x17 mm) package is a fine-pitch BGA; the board requires a multi-layer stack-up with microvias or blind vias for fanout. Operating temperature is 0°C to 70°C, so this part is specified for indoor, temperature-controlled equipment — server racks, telecom central offices, lab instrumentation. Not rated for extended industrial or automotive environments.