BUY DS1213-C https://www.utsource.net/itm/p/1568647.html
SmartSocket 256k/1M
The DS1213-C is a nonvolatile memory device manufactured by Dallas Semiconductor. It is a 28-pin DIP (dual in-line package) that is used to store data in a nonvolatile manner. It is a static RAM (SRAM) with a battery backup system that allows the data to be retained even when the power is off. The DS1213-C has a capacity of 256 bytes of SRAM and a battery backup system that allows the data to be retained for up to 10 years. It also features an on-chip clock oscillator and a write-protect pin that can be used to prevent accidental overwriting of data. The DS1213-C is commonly used in applications such as data logging, system configuration, and remote control systems. It is also used in embedded systems, industrial control systems, and medical devices. (For reference only)