DS1302 Real Time Clock Module (No Battery)

DS1302 Real Time Clock Module (No Battery) is a compact and efficient RTC solution based on the DALLAS DS1302 chip. It offers both timekeeping and 31 bytes of static RAM storage, making it ideal for applications requiring real-time tracking, even during power failures. This module communicates via a simple 3-wire serial interface (RST, I/O, SCLK), compatible with most microcontrollers including Arduino and 8051 series.

The module supports both 12-hour and 24-hour formats with leap year compensation until the year 2100. It’s built for low power operation and can retain time and data for long durations on minimal power, thanks to its support for a trickle-charge feature. Though the battery holder is not included in this version, it still serves as a versatile component in embedded systems, IoT, clocks, and timer-based projects.

🔧 Key Features

• Based on DALLAS DS1302 RTC chip
• Real-time tracking: seconds, minutes, hours, date, day, month, year
• Leap year adjustment through 2100
• 31 bytes of non-volatile static RAM
• Simple 3-wire interface: RST, I/O, SCLK
• Operates at 5V or 3.3V input
• Compatible with TTL logic levels
• Low current consumption: <300nA at 2.0V
• DIP-8 or SOIC-8 form factor (without battery slot)
• Supports external backup battery (not included)

📐 Technical Specifications

📌 Applications

• Real-time clocks for embedded systems
• Digital alarm clocks or timers
• Data logging projects
• IoT time tracking modules
• Home automation or energy meter timing

💡 Why Choose This RTC Module?

The DS1302 Real Time Clock Module (No Battery) delivers highly accurate timekeeping with minimal components. With a 3-wire interface, low power consumption, and robust RAM integration, it’s an ideal choice for developers looking to implement RTC features in low-power or compact systems.

📦 Package Includes

• 1 × DS1302 RTC Real Time Clock Module (No Battery)