The V3025SO28A+ from EM Microelectronic is a real-time clock (RTC) Integrated Circuit with clock/calendar (8B) function, in a 28-SOIC (0.295", 7.50 mm width) package.
The V3025SO28B+ from EM Microelectronic is a real-time clock (RTC) Integrated Circuit with clock/calendar and 8B capacity, in a 28-SOIC package with 0.295" (7.50 mm) width.