What this DDR II SRAM is and where it fits
The Infineon CY7C1318KV18-300BZXC is an 18 Mbit synchronous SRAM organized as 1M x 18 bits, running at a 300 MHz clock rate on a DDR II interface. It is a volatile memory with a 1.7V to 1.9V supply range and a parallel interface.
300 MHz clock — what it buys the system
At 300 MHz, this part delivers back-to-back read-write cycles with no dead cycles between transactions, thanks to the DDR II pipeline. The trade-off is a 165-ball FBGA that demands four-layer-plus PCB routing and X-ray inspection on the assembly line.
Temperature grade and environment
Rated for 0°C to 70°C ambient, this SRAM is meant for indoor, climate-controlled racks — server rooms, central offices, lab instrumentation. Do not spec it into an outdoor cabinet or an engine bay without active cooling; the commercial temperature range is the hard limit.