RTC Real Time Clock Module — 2 — DS1302

DescriptionReal-time clock mod­ule with Dal­las DS1302 Inte­gra­tion and with a bat­tery sock­et to not reset the clock is com­pat­i­ble with Arduino and always gives the cor­rect time.SpecificationsDimen­sions: 43mm X 23mmWork­ing Volt­age: 2V — 3.3V — 5.5VActive Work­ing Cur­rent (5V): 1.28mAClock-hold­ing Cur­rent (5V): 1uACom­mu­ni­ca­tion pro­to­col: 3 pin ser­i­alResourcesDatasheet