The Renesas 71V67803S150BQ is a 9 Mbit synchronous SRAM organized as 512K x 18 bits. It runs on a 150 MHz clock with a 3.8 ns access time, using a parallel interface and a 3.135 V to 3.465 V supply. The part is volatile memory in a 165-ball CABGA (13x15 mm) surface-mount package. Typical applications include network switch buffers, cache memory in telecom line cards, and high-speed data acquisition systems where deterministic read/write latency matters.
The 150 MHz clock rate sets the maximum data throughput. The 3.8 ns access time is the delay from clock edge to data valid on the outputs.