DS1307 ic is a low-power, 8-pin Real-Time Clock (RTC) IC that provides seconds, minutes, hours, date, month, and year information, with leap-year compensation valid up to 2100. It uses a 2-wire interface to connect with microcontrollers and features 56 bytes of battery-backed NVRAM. Analog Devices +2
Key Features and Specifications:
Timekeeping: Tracks hours (12/24 hour format), minutes, seconds, and date.
Interface: Simple two-wire, bidirectional interface.
Backup Power: Includes a dedicated pin for a 3V coin cell (e.g., CR2032), allowing timekeeping to continue when main power (4.5V–5.5V) is lost.
Low Power Consumption: Consumes less than 500nA in battery-backup mode.
Applications: Ideal for digital clocks, data loggers, and IoT devices. Analog Devices +7
The IC is widely available in 8-pin DIP or SO packages