DS1673E-3

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The DS1673E-3 is a Real Time Clock (RTC) from Maxim Integrated, ideal for applications that require time and date information in order to keep track of time and manage scheduling tasks. It is a highly accurate RTC that has 8-pin PDIP package, a 32kHz input frequency, and an accuracy of ±2ppm. It has a wide operating supply voltage range of 1.8V to 5.5V, making it an ideal solution for power-sensitive applications. In addition, it offers a range of features, such as alarms, which make it useful for various types of applications.

The DS1673E-3 is an ideal solution for general purpose applications that require accurate timekeeping, such as alarm clocks, smart cards, or data collection systems. It is also suitable for applications that control certain time-sensitive tasks, such as factory automation and inventory management. In addition, the DS1673E-3 can be used for applications with frequent power interruptions, such as logging, engine control, and lighting.

The DS1673E-3 uses a crystal oscillator as its basic timekeeping element. A crystal oscillator is a circuit that uses an external crystal to produce a highly accurate clock signal, which is then divided down to produce a stable timebase. The DS1673E-3 converts this timebase into a 32kHz output signal, which can be used by other clocks or used to drive external counters and liquid crystal displays. The DS1673E-3 also supports the synchronization of several RTCs by using the on-chip clock synchronization circuit.

The DS1673E-3 also supports two operational modes: the power-saving mode and the normal operation mode. In the power-saving mode, the user can reduce power consumption by using the on-chip circuitry to power down the device when not in use. In the normal operation mode, the device can provide accurate timekeeping, alarms, and other clock functions without the need for an external power source. The user can configure the device to operate in either mode by setting the appropriate operating mode register.

In addition, the DS1673E-3 has an on-chip Trickle Charge circuitry, which is used to maintain the timekeeping accuracy of the device when power is insufficient for a normal operation. The Trickle Charge circuit can be used to maintain the timekeeping accuracy of the clock when the power supply voltage is lower than the specified level. The user can configure the Trickle Charge circuit to maintain a sufficient amount of voltage for the clock to operate.

The DS1673E-3 also supports an alarm interrupt output signal. This signal can be used to generate an alarm event at a predetermined time or date. The alarm output signal can be used to control other circuits, or it can be used to generate an event such as a system shutdown. In addition, the DS1673E-3 provides a 32kHz output signal, which can be used to drive external counters or LCDs.

The DS1673E-3 also provides an integrated battery switch-over circuit, which ensures that the device is always using the most current timekeeping information. The battery switch-over circuit can be used to switch the device from an external power source to an onboard internal battery, and vice versa. The device can also be used with an external battery, allowing the use of an external rechargeable battery to extend the timekeeping ability in applications where power interruptions are expected.

Overall, the DS1673E-3 is an ideal solution for applications that require accurate timekeeping and other scheduling tasks. It is an energy-efficient device, with a low-power consumption mode, and it offers a wide range of features, such as alarms, integration with external batteries, and the Trickle Charge circuit, making it a great choice for various applications. With its wide operating voltage range, it is an ideal choice for power-sensitive applications.

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