BUY DS1218S+ https://www.utsource.net/itm/p/5654641.html
Power Supply Management Circuit, Fixed, 2 Channel, CMOS, PDSO8, 0.150 INCH, SOIC-8
The DS1218S+ is a nonvolatile SRAM memory module manufactured by Maxim Integrated Products. It is an 8-pin SOP package and is designed to provide reliable, low-power storage of data in a variety of applications. The DS1218S+ features a fast access time of 70ns and a low power consumption of 200μA. It has a maximum storage capacity of 64K bytes and is capable of storing up to 8K words. The module also features a built-in watchdog timer and a power-on reset circuit. The DS1218S+ is suitable for a variety of applications, including industrial automation, medical equipment, automotive, and consumer electronics. It is also suitable for use in embedded systems and other applications requiring nonvolatile storage of data. (For reference only)