DS1307N

IC RTC CLK/CALENDAR I2C 8-DIP,                                                    

Type    Clock/Calendar
Features    Leap Year, NVSRAM, Square Wave Output
Memory Size    56b
Time Format    HH:MM:SS (12/24 hr)
Date Format    YY-MM-DD-dd
Interface    I²C, 2-Wire Serial
Voltage - Supply    4.5 V ~ 5.5 V
Voltage - Supply, Battery    2 V ~ 3.5 V
Current - Timekeeping (Max)    200µA @ 5V
Mounting Type    Surface Mount
Package / 8-DIP (0.300", 7.62mm)

  data sheet