DS1391U-18+

The DS1391U-18+, a real-time clock component, is designed for applications requiring a reliable, cost-effective timing solution for managing a range of dates and times. The product provides a wide temporal range with high accuracy and fewer component parts, making it an excellent choice for applications including data and time collections, maintenance scheduling, and datalogging.

The DS1391U-18+ features a SPI compatible serial interface and uses an external crystal, battery backup, non-volatile RAM, and EEPROM for data storage. This component is available in two levels of accuracy: Standard grade, which is accurate to ±15 seconds per day, and High grade, accurate to ±2 second per day. It also includes a 1 Hz output signal and programmable counter output, allowing high speed transfers with accurate initialization. The component can also be used in data communication applications to update automatically time and date information to remote systems. Additionally, the clock can be monitored and corrected by an external signal with an adjustable off set.

When it comes to its operating principle, the DS1391U-18+ combines the use of internal and external components to generate accurate timing information. At the heart of the component is an oscillator that uses a quartz crystal, which is connected to two sections of a CMOS integrated circuit, controlling two output signals. The oscillator circuits are powered by an external battery for backup, ensuring that the component will keep running even during power outages. The quartz crystal also allows for synchronization of the component to external clocks, permitting accurate instrumental timing for various applications.

The DS1391U-18+ can be incorporated into systems where precise temporal information is needed. Its features and performance make it an ideal choice for scheduling and timing applications, including timekeeping and alarm systems. The component’s wide temporal range, accurate timekeeping, low power consumption, and small size make it an excellent choice for a variety of applications. It can also be used as an alternative to more expensive and complex digital systems, providing a cost-effective solution for timekeeping and control applications.

The DS1391U-18+ is a reliable, cost-effective real-time clock component that provides accurate timing information for a variety of applications. With its low power requirements, programmable output signals, non-volatile RAM and battery backup, the component is an ideal choice for any application requiring precise temporal information.