DS1302 Real Time Clock (RTC) IC

Overview

Keep your projects perfectly on time with the DS1302 Real Time Clock (RTC) IC. This compact, low-power chip tracks seconds, minutes, hours, dates, months, and years, and even handles leap years automatically. It includes 31 bytes of static RAM for storing data, and communicates with your microcontroller using a simple serial interface (SPI-compatible). Perfect for data logging, clocks, timers, and any time-aware application, the DS1302 is a staple for makers in Egypt.

Key Features

• Accurate timekeeping – tracks seconds, minutes, hours, date, month, and year, with leap-year compensation.
• 31 bytes of static RAM – for storing user data.
• Simple 3-wire serial interface – easy to connect to any microcontroller.
• Low power consumption – operates on a backup battery for years.
• Wide operating voltage – 2.0V to 5.5V.
• 24-hour or 12-hour format – selectable.
• Automatic adjustment for months with fewer than 31 days.

Technical Specifications

• Timekeeping voltage: 2.0V – 5.5V
• RAM voltage: 2.0V – 5.5V
• Serial interface: 3-wire (CE, I/O, SCLK)
• RAM size: 31 x 8 bits
• Clock format: 12-hour or 24-hour
• Leap year compensation: Yes
• Operating temperature: -40°C to +85°C
• Package: DIP-8 (through-hole)

Applications & Use Cases

• Arduino and Raspberry Pi projects – add real-time clock functionality.
• Data loggers – timestamp sensor readings.
• Digital clocks and timers – for home or industrial use.
• Alarm systems – schedule events.
• IoT devices – maintain accurate time even when disconnected.

What's Included

• 1x DS1302 Real Time Clock IC (DIP-8)

Compatibility

• Works with all major microcontrollers: Arduino, Raspberry Pi, ESP32, STM32, and more.
• Commonly used with the DS1302 RTC module (sold separately) for easy prototyping.
• Can be powered with a 3V coin cell battery (e.g., CR2032) for backup.

MOKWN Recommendation

Whether you're a student, hobbyist, or professional engineer, the DS1302 is a reliable and affordable choice for adding timekeeping to your embedded projects. Pair it with a crystal oscillator and a backup battery for a complete RTC solution. Order today and get fast delivery anywhere in Egypt!