DollaTek 5Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module For Arduino AVR PIC 51 ARM

The Real Time Clock features a DS1307 I2C Real Time Clock Chip wIth 24C32 32K I2C EEPROM memory. It is accessed through the I2C protocol for efficient communication. Equipped with a rechargeable 2032 lithium battery and charging circuit, this clock can provide DS1307 synchronization for up to 1 year after a full charge. Capable of accurately counting seconds, hours, minutes, days of the month, months, and days of the week, with a leap year compensation function. It also includes an online yearbook up to 2100 for comprehensive time tracking. Solves the issue of DS1307 not being able to read and write with battery backup, with the added flexibility of cascading other I2C devices. Features low power consumption in battery backup mode, automatic blackout detection, and switching circuit. You will receive 5pcs RTC I2C real-time clock modules, each with a 5 pin straight single row and 7 pin straight single row for easy installation.