BUY MN4264P-15 https://www.utsource.net/itm/p/1826114.html

The MN4264P-15 is a 4,194,304-bit high-speed CMOS static random access memory (SRAM) manufactured by Panasonic. It has a 18-pin dual in-line package (DIP) and operates on a single 5V power supply. The MN4264P-15 features a fast access time of 15ns, low power consumption of 70mW (max) and a wide operating temperature range of -55°C to +125°C. It has an asynchronous read/write operation and is capable of providing 4,194,304 bits of memory storage. The MN4264P-15 is suitable for use in a variety of applications such as embedded systems, industrial automation, medical equipment, and consumer electronics. It is also suitable for use in applications requiring high-speed data transfer, such as digital signal processing (DSP) and high-speed data acquisition systems. (For reference only)