ADIDS1307N+
Overview
The DS1307N+ is a low-power, full binary-coded decimal (BCD) real-time clock and calendar chip with 56 bytes of nonvolatile SRAM. It manages all timekeeping functions including seconds, minutes, hours, date, month, and year with leap-year compensation valid up to 2100. The device operates via an I2C serial interface and features a built-in power-sense circuit that detects power failures and automatically switches to the backup battery supply.
Why Choose This Part
The 8-DIP package makes it ideal for breadboarding and through-hole PCB designs without requiring surface-mount soldering. It simplifies system design by integrating 56 bytes of battery-backed RAM for storing critical system parameters alongside the time data. The automatic power-fail circuitry and extremely low standby current ensure long-term reliability when running from a small lithium coin cell.
Applications
Key Specifications
Getting Started
To use the DS1307N+, connect a 32.768kHz crystal to the X1 and X2 pins and provide a 4.5V to 5.5V supply to VCC. Pull-up resistors are required on the SDA and SCL lines for I2C communication with a microcontroller. In the Arduino ecosystem, the RTClib library is a standard choice for interfacing with this IC and managing the BCD data registers.
