The Maxim Integrated DS1302Z+T is a versatile, low-power real-time clock (RTC) module that provides a full binary-coded decimal (BCD) clock/calendar with 31 bytes of static RAM. It is an ideal component for timekeeping functions in a wide range of consumer electronics, office automation, and personal computing applications, including servers, printers, and embedded systems.

This RTC module is designed to communicate with a microprocessor via a simple serial interface. The DS1302Z+T encapsulates the year, month, date, day, hour, minute, and second in 24-hour or 12-hour format with an AM/PM indicator. A built-in power-sense circuit detects power failures and automatically switches to the backup supply, maintaining time and date operation.

Key Features

• Integrated Crystal: The device includes a crystal oscillator, which significantly simplifies the design-in process and reduces external component count.
• Low Power Consumption: It operates in a low-power mode that allows the device to be used in battery-powered applications.
• Trickle-Charge Capability: The DS1302Z+T supports a trickle-charge feature that enables a rechargeable battery or a supercapacitor to be used as a backup power source, ensuring uninterrupted operation.
• Serial Interface: The simple serial interface facilitates communication with most microprocessors, and it's especially suitable for applications with limited I/O.
• Byte-Wise Addressing: The RTC provides access to its registers through a simple byte-wise addressing scheme, making it easy to read from and write to.
• Programmable Square-Wave Output: This output can be used for various applications, including a watchdog timer or an alarm system.

The DS1302Z+T is available in a compact surface-mount package, making it suitable for space-constrained applications. Its robust design ensures reliable operation over an industrial temperature range (-40°C to +85°C), making it a preferred choice for systems that require dependable timekeeping under varying environmental conditions.

With its combination of features, the Maxim Integrated DS1302Z+T RTC is a comprehensive timekeeping solution that delivers accuracy, flexibility, and ease of integration for designers and engineers.