BUY DS1230Y-150 https://www.utsource.net/itm/p/195245.html
256K Nonvolatile SRAM
Description: The DS1230Y-150 is a nonvolatile static RAM memory chip manufactured by Dallas Semiconductor. It is a 28-pin DIP package and has a 150ns access time. Features: - 150ns access time - Low power consumption - Nonvolatile memory - 28-pin DIP package Applications: The DS1230Y-150 is used in a variety of applications, including data logging, system configuration, and system monitoring. It is also used in industrial, medical, and automotive applications. (For reference only)