DS1307Z/TR

The DS1307Z/TR is a serial real-time clock (RTC) IC from Analog Devices / Maxim Integrated, designed for managing timekeeping functions. It provides seconds, minutes, hours, date, month, and year information, with automatic adjustments for month length and leap years. The clock supports both 24-hour and 12-hour formats with an AM/PM indicator.

Key features include 56 bytes of battery-backed NV SRAM for unlimited writes, a programmable square-wave output signal, and an I2C serial interface for easy integration with microcontrollers. It operates with a supply voltage of 4.5V to 5.5V and has a battery voltage range of 2V to 3.5V. The device consumes less than 500nA in battery-backup mode with the oscillator running.

This RTC IC is housed in an 8-SOIC surface mount package, minimizing space requirements. It operates within a temperature range of 0°C to 70°C. The built-in power-sense circuit detects power failures and automatically switches to a backup supply, ensuring continuous timekeeping operation.

Applications for the DS1307Z/TR include any system requiring accurate timekeeping, such as embedded systems, data loggers, and industrial control equipment. Its low power consumption and battery backup capability make it suitable for applications where continuous operation is critical.