Catalog > Internet of Things (IOT) Related Products > More Platforms DS1307 Clock Module Clock Module DS1307 BSK REAL TIME CLOCK-DS1307 REAL TIME CLOCK -I2C WITH 24C32-32K EEPROM WITH CR2032 BATTERY HOLDER (BATTERY NOT INCLUDED) Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview The DS1307 is a low power, with 56 bytes of non-volatile RAM BCD code clock calendar real-time clock chip, the address and data transmission through the two-wire bidirectional serial bus, the chip can be seconds, minutes, hours and other information , the number of days in each month can be adjusted automatically. And there is a leap year compensation function. AM / PM flag determines clock work 24-hour or 12-hour mode, the chip has a built-in power-sense circuit, brownout detection and battery switching function. Features Module Feature:DS1307 I2C real-time clock chip (RTC)24C32 32K I2C EEPROM memoryUsing LIR2032 rechargeable lithium battery (Battery not included) with charging circuitFully charged, it can provide 1 year lifetimeCompact design, 27x28x8.4mmLeads to the a DS1307 clock pin, to provide the clock signal for the MCUCan be cascaded to other I2C devicesWeight : 0.008 kgDS1307 Feature: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 210056 bytes of non-volatile RAMTwo-wire serial interfaceProgrammable square-wave outputAutomatic power-down detection and switching circuitIn battery backup mode, power consumption is less than 500nAWeight : 0.008 kg Downloads 24C32 Datasheet PDF File 209.71 KB DS1307 Time RTC Module - Schematic PDF File 53.43 KB DS1307 Datasheet PDF File 315.12 KB