BUY MM2114N-L https://www.utsource.net/itm/p/11775045.html

The MM2114N-L is a 4K-bit static RAM manufactured by Nippon Semiconductor. It is a 18-pin DIP package with a maximum access time of 250 ns. Description: The MM2114N-L is a 4K-bit static RAM that is organized as 512 words by 8 bits. It is designed for use in a wide variety of applications, including high-speed memory systems, data buffers, and program storage. Features: 4K-bit static RAM 512 words by 8 bits Maximum access time of 250 ns 18-pin DIP package Low power consumption TTL compatible Applications: High-speed memory systems Data buffers Program storage Embedded systems Automotive applications Industrial control systems (For reference only)