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DIP DS1307 Clock Circuit / Timing Real Time Clock Serial Port 64X8 DIP-8
Can account seconds, hours, minutes, monthly number of days, months, days of the week count with leap year compensation function. Record the year on line 2100
56 bytes of non-volatile RAM
Two-wire serial interface
Programmable square-wave output
Automatic power-down detection and switching circuit
In battery backup mode, power consumption is less than 500nA