DS1307 IN1307 Real Time Clock RTC IC SMD Package

DS1307 IN1307 Real Time Clock RTC IC SMD Package 

The DS1307 (also known as IN1307 compatible) is a low-power real-time clock (RTC) IC designed to provide accurate timekeeping and calendar functions for embedded systems and microcontroller-based applications. It communicates via the I²C serial interface, making it easy to integrate into a wide range of digital designs.

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.

The SMD package makes it suitable for compact, modern PCB designs.

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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: 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: SMD (e.g., SOIC-8 / SOP-8, depending on variant)
• High reliability and stable operation