DS1307 IN1307 Real Time Clock RTC IC

DS1307 IN1307 Real Time Clock RTC IC 

The DS1307 (and its compatible version IN1307) is a low-power real-time clock (RTC) IC designed to provide accurate timekeeping and calendar functions in microcontroller-based and embedded systems. It communicates via the I²C serial interface, making it easy to integrate with a wide range of processors and development boards.

The DS1307 keeps track of seconds, minutes, hours, day, date, month, and year, with automatic leap-year compensation. It also includes 56 bytes of battery-backed NV SRAM for storing user data. With a battery backup input, the clock continues to run even when the main power is removed, making it ideal for clocks, data loggers, and time-stamping applications.

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Applications

• Real-time clocks in microcontroller systems
• Data loggers and time-stamping devices
• Industrial controllers and automation systems
• Consumer electronics
• Smart meters and IoT devices
• Clocks, timers, and schedulers

Features

• Type: I²C Real-Time Clock (RTC)
• Compatible devices: DS1307 / IN1307
• Communication interface: I²C
• Date and Time: Seconds, minutes, hours, day, date, month, year
• Automatic leap-year compensation
• 56 bytes battery-backed NV SRAM
• Battery backup input for continuous timekeeping
• Low power consumption
• Operating voltage: 4.5V to 5.5V
• Requires external 32.768 kHz crystal
• Package options: DIP-8 / SMD (depending on variant)
• Reliable, widely used, and easy to interface

DS1307-IC Datasheet