BUY AS4C256K16E0-50JC https://www.utsource.net/itm/p/574578.html
5V 256Kx16 CMOS DRAM EDO
Description: 256K x 16 Asynchronous SRAM Features: - Fast access time of 50ns - Low power consumption - High speed data transfer - High speed page mode - Low power standby mode - Low voltage operation - Single power supply - Industrial temperature range Applications: - Networking - Automotive - Industrial - Consumer - Medical (For reference only)