DS1307ZN+TR – MAXIM INTEGRATED

The Maxim Integrated DS1307ZN+TR is a low-power, serial real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. This RTC provides hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. It automatically adjusts for leap years and has a programmable square-wave output. The DS1307ZN+TR operates at a typical voltage range of 4.5V to 5.5V, and offers a battery input for continuous timekeeping even when main power is lost. The output voltage is 5V, with a maximum output current rating of 2mA. Encapsulated in a space-saving 8-pin SOIC (Surface Mount Device) package, the DS1307ZN+TR offers ease of integration into compact designs. Its operating temperature range spans from -40°C to +85°C. Common applications include data loggers, embedded systems, and portable devices where accurate timekeeping is critical. The integrated TCXO and crystal eliminate the need for external timing components, simplifying the BOM and improving overall system reliability.