72Mbit QDR II SRAM — 167 MHz, 4M x 18 organization
The CY7C1512V18-167BZC is a 72Mbit QDR II synchronous SRAM from Infineon, organized as 4M words by 18 bits. It operates at a 167 MHz clock frequency with a parallel interface, delivering the high random-access throughput that network processors, line cards, and high-end test equipment demand. The supply range is 1.7 V to 1.9 V, and the device is specified for the commercial temperature range of 0°C to 70°C.
The 0.80 mm ball pitch requires a controlled-impedance PCB stack-up — the high-speed QDR II bus edges demand matched trace lengths and proper decoupling near the supply balls.