Breakout Boards, Modules and Breakout Boards
DS1302 Clock Module Real-Time Clock Module RTC for AVR ARM
The DS1302 is a low-power, trickle-charge real-time clock (RTC) module that tracks seconds, minutes, hours, date, month, day, and year with leap-year compensation up to 2100. It uses a 3-wire serial interface (RST, I/O, SCLK) to communicate with microcontrollers and operates at 2.0V-5.5V, consuming <300nA at 2.0V for battery backup.
Availability:
In stock
₨ 160
In stock
The DS1302 module is designed to maintain accurate time (date, hours, minutes, seconds) even when the main system power is off. It is highly popular in Arduino, PIC, and ARM projects for data logging, timers, and alarm systems. It automatically handles leap-year adjustments.
Pin Configuration:
- VCC: Power Supply (2.0V – 5.5V)
- GND: Ground
- I/O: Data Input/Output
- SCLK: Serial Clock
- RST (CE): Reset/Chip Enable
Package Includes:
1 x DS1302 Module
Commonly used in projects needing to log data, such as arduino or with Raspberry Pi systems.

- Timekeeping: Tracks seconds, minutes, hours (12/24-hour format), date, month, day, year.
- Memory: 31 bytes of static RAM for data storage.
- Interface: Simple 3-wire Serial Interface (RST, I/O, SCLK).
- Power Supply: Wide voltage range (2.0V to 5.5V).
- Backup Power: Low power consumption, <300nA at 2.0V, supports CR2032 battery.
- Trickle Charge: Includes trickle-charge circuitry for backup battery.
- Package: Available in 8-pin DIP or SOIC.
- Size: Typically 44mm x 23mm.
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