What this synchronous SRAM is and where it fits
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 commercial temperature range (0°C to 70°C) suits indoor equipment in controlled environments.
150 MHz clock and 3.8 ns access — what they mean for the bus
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.