BUY FM1808-70-P https://www.utsource.net/itm/p/924835.html
256Kb Bytewide FRAM Memory
Description: The FM1808-70-P is a 28-pin DIP RAMRON chip manufactured by RAMRON. Features: - 8K x 8 bits of static RAM - Low power consumption - Fast access time of 70ns - Single 5V power supply - TTL compatible inputs and outputs - Fully static operation Applications: - Automotive - Industrial - Medical - Telecommunications - Military - Aerospace (For reference only)