DS1746W-120+

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The DS1746W-120+ is a Real Time Clock peripheral designed by Dallas Semiconductor that is widely used in a variety of applications where accurate timekeeping is needed. The DS1746W-120+ integrates a real-time clock calendar and 2KB of non-volatile memory into a single package, making it an economical and reliable choice for a variety of applications.

The DS1746W-120+ is a no-calibration real-time clock (RTC) which includes an on-chip oscillator, power-fail detection and battery-backup system. The device provides a continuous time and date display, even after power loss, for up to 10 years. As such, it is suitable for a wide range of applications including personal digital assistants, laptop and desktop computers and embedded systems.

The DS1746W-120+ works by combining the latest RTC technology with low-power CMOS oscillator circuitry. The oscillator circuitry uses an on-chip crystal along with onboard power-fail detection circuitry to detect and note any power losses that occur. It then automatically switches to an onboard battery supply, which keeps the clock and calendar running. The battery used is usually a CR2032 coin cell, which lasts up to 10 years in standby mode.

The DS1746W-120+ also contains a 2KB non-volatile memory which can be used to store various data like alarm information, passwords, and user preferences. This allows for fast data retention without the need for complex EEPROMs or multiplexers. The memory cell is also changeable, meaning that the data can be backed up in the event of a power failure.

The DS1746W-120+ is a great choice for remote industrial applications or embedded systems, where its flexible combination of features makes it an ideal solution. The DS1746W-120+ is also a perfect fit for medical, military and consumer electronics applications, thanks to its low-power requirements and its ability to accurately time-stamp and store data. The combination of the RTC, memory and low-power requirements make the DS1746W-120+ an ideal choice for these applications.

Overall, the DS1746W-120+ is a dependable, cost-effective solution for a wide range of applications with its wide temperature range and timekeeping accuracy. Its combination of real time clocks, calendar, and memory represent an unbeatable combination of features that make the DS1746W-120+ well-suited to a variety of industrial and consumer applications. Its flexibility enables engineers to design products that are both reliable and cost-effective.

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