DS1337U+

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The DS1337U+ is a low-power, Serial Real-Time Clock (RTC) with accurate timekeeping, universal timing for computer applications, and a high-precision digital temperature sensor. It is designed to meet the demands of a variety of applications from industrial, consumer, and instrumentation to consumer. The DS1337U+ has wide-ranging features and benefits that make it an ideal choice for applications that require precise timekeeping.

The DS1337U+ is optimized for performance and accuracy, relying on accurate quartz crystal time-keeping and time-zone calculations to ensure time accuracy. The crystal oscillator provides a frequency accuracy of ±20ppm (parts per million) for second-level accuracy. Timekeeping accuracy is further enhanced by the on-chip oscillator circuit, integrated temperature-compensated voltage-controlled crystal oscillator (VCXO), and the internal low-power balanced oscillator. The DS1337U+ also features an automatic calibration feature that compensates for crystal aging and temperature-induced changes.

In addition to precision timekeeping, the DS1337U+ provides an embedded digital temperature sensor that supplies highly accurate temperature measurements. The temperature sensor is temperature-compensated to ensure accuracy and is integrated into the silicon temperature-controlled oscillator circuit.

The DS1337U+ has a low-power design that enables longer battery life. It can operate down to 0.2V, reducing the standby current to 250nA, allowing for extended operation on a single-cell battery. It also incorporates power-saving mode, adjustable from 0.5 seconds to 1 second, that further enhances battery life in constantly powered applications.

The DS1337U+ is widely used for a variety of industrial, consumer, and instrumentation applications, including cellular phones, wrist-watches, data loggers, and HVAC systems. In these applications, it is used to maintain temperature accuracy, track elapsed time and generate alarms, and synchronize other external components. The DS1337U+ also supports an I2C interface for communication, allowing it to be used in a wide range of microcontroller-based systems.

The DS1337U+ is an excellent choice for a wide range of applications that require accurate and reliable timekeeping and temperature sensing. With its low-power design, accurate quartz crystal timekeeping, temperature-compensated temperature sensor, and I2C interface, the DS1337U+ is a reliable and affordable choice for a variety of real-time clock applications.

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