The DS1314S+ is a nonvolatile RAM controller from Analog Devices, designed for 3V systems. It operates within an industrial temperature range and comes in a 16-SOIC package.
The DS1314S from Analog Devices / Maxim Integrated is a nonvolatile RAM controller designed for 3V to 3.6V systems. It offers automatic power-fail detection and operates within an industrial temperature range.