Enhanced RTC Module with CR2032 Holder - I2C Interface, AT24C32 EEPROM, No Battery Included (20pcs DS1302)

DS1302 Real Time Clock Module

🛠️ Experience the precision of timekeeping with the DS1302 Real Time Clock Module, designed for seamless integration with microcontrollers like AVR, ARM, and PIC. This sophisticated module features a robust real-time clock and calendar functionality, along with 31 bytes of static RAM, all accessible via a simple serial interface.

💍 The DS1302 excels in providing comprehensive timekeeping capabilities, including the tracking of seconds, minutes, hours, days, weeks, months, and years. It automatically adjusts for the varying number of days in months and accounts for leap years, ensuring accurate time representation. You can also switch between 12-hour AM/PM and 24-hour formats, catering to various application requirements.

Communications between the DS1302 and your microcontroller is streamlined through a three-wire synchronous serial interface, which utilizes the following pins:

• RST: Reset
• I/O: Data line
• SCLK: Serial clock

⚙️ This low-power module operates with a consumption of less than 1mW, further enhancing its efficiency and making it ideal for battery-powered applications. The DS1302 is capable of operating over a wide voltage range of 2.0V to 5.5V, accommodating various microcontroller setups, and features two operational modes for data transmission: single-byte and multi-byte character sets.

🧩 Designed for versatility, the DS1302 is available in both an 8-pin DIP package and an 8-pin SOIC package. Its dimensions (42mm x 24mm x 12mm, max) and green PCB design further facilitate easy integration into your projects. The module comes with 4 mounting holes (approx. 3.1mm in diameter) for convenient installation.

Highlighting key specifications:

• Operating Voltage: 3.3V/5V compatibility
• Operating Temperature: 0°C to 70°C
• Battery: CR2032 (3V, 260mAh, non-rechargeable)
• Crystal Frequency: 32.768kHz with matching capacitance of 6pF

🧩 Overall, the DS1302 Real Time Clock Module combines advanced functionality with user-friendly operation, making it an ideal solution for projects that require accurate timekeeping and data storage.

DS1307 Real Time Clock Module

🧩 Introducing the DS1307 Real Time Clock Module, meticulously developed by our designer Waiman. This fully assembled and pre-programmed module simplifies the process of adding timekeeping functionality to your projects, coming with the current time set (pre-programmed in MST).

🔧 The DS1307 communicates over a two-wire I2C interface, allowing for efficient data exchange with your microcontroller. Key features include:

• Time Format: Displays Hour:Minutes:Seconds with AM/PM notation
• Date Format: Shows Day, Month, Date, and Year
• Leap Year Compensation: Automatically adjusts for leap years
• Accurate Calendar: Valid until the year 2100
• 1Hz Output Pin: For generating precise timing signals
• Memory: 56 bytes of non-volatile memory available for user storage

📦 Compact and efficient, the DS1307 measures only 28mm x 25mm x 10mm, making it an unobtrusive addition to your electronics projects. Upgrade your timekeeping capabilities with the DS1302 and DS1307 modules, engineered for reliability and performance.