DS1742-100IND+

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The DS1742-100IND+ Real Time Clock (RTC) is a silicon-based clock featuring a built-in 32 kHz oscillator, adjustable base frequency and logic-programmable alarm output, providing an ideal solution for system time keeping in a variety of applications. The device is capable of performing real-time clock operations, as well as providing a selectable alarm output. It requires user-supplied time-of-day information and can be programmed using a variety of real-time clock or calendar/alarm registers.

Application Field

The DS1742-100IND+ is a perfect timer solution for consumer, communication and industrial applications, particularly those with fast processor speeds, requiring a high-accuracy, low power, low jitter clock. Its wide range of features including selectable base frequency, calendar and alarm, selectable output and user-configurable events make it a perfect choice for almost any system time-keeping application.

The ability to select the frequency allows the clock to interface directly with a wide range of processors, providing an ideal solution for a variety of tasks such as keeping track of the time for system events or for providing a time reference for scheduling and timing operations. The clock also features a selectable alarm, allowing users to set an alarm for a particular time or event, useful for scheduling precision tasks and performing certain operations at specific times. The intermittent alarm output allows the user to configure different alarm events such as hourly beeps or event-triggered events.

The clock also features an adjustable battery backup function, ideal for maintaining the system time in the event of a power outage. The battery is designed to back up the time information stored in the clock following a power loss and allow the clock to resume normal operation upon return of power.

The DS1742-100IND+ is also suitable for applications such as telecommunications timing, computer and network configuration, network security, and industrial control.

Working Principle

The DS1742-100IND+ operates on precise power sources with no initial programming required. The clock is powered by a 32.768kHz quartz crystal oscillator. The oscillator provides an accurate signal against which the clock can measure its own time reference, allowing for precise time-keeping and a variety of clock features. An adjustable base frequency can be set by the user, allowing the clock to operate with a wide range of processors.

The clock is capable of storing time information in its registers, allowing for the user to set a calendar, or to program an alarm for a specific time or event. When the programmed time or event is reached, the clock will output a signal on its alarm output. The clock also features a user-programmable battery backup, ensuring that the clock can maintain the user-specified time and calendar data in the event of a power outage.

The DS1742-100IND+ supports a wide range of operations and programming, providing an ideal solution for system time keeping in a variety of applications. The clock can be programmed using a variety of real-time clock or calendar/alarm registers, making it suitable for a wide range of tasks such as scheduling, time reference, and time-critical events.

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