BUY M48T59Y-70PC1D https://www.utsource.net/itm/p/11537995.html

Description: The M48T59Y-70PC1D is a 28-pin EDIP (Enhanced Dual In-line Package) Timekeeper RAM from STMicroelectronics. It is a non-volatile 8K x 8-bit RAM with a real-time clock/calendar and battery backup. Features: 8K x 8-bit non-volatile RAM Real-time clock/calendar with battery backup 28-pin EDIP package Low power consumption High reliability Easy to program Applications: Automotive Industrial Medical Telecommunications Consumer electronics Networking (For reference only)