DS1302 RTC Real Time Clock Module

$5.00 USD
The price is for a single piece.
There are 3 pieces in the retail box.
The quantity has to be a multiple of 3.
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Frequently Bought Together

Total price:$13.00

Introducing the Lonely Binary DS1302 Real-Time Clock Module – your ultimate timekeeping companion that pairs perfectly with any micro-controller. Designed to keep time with style and efficiency, this remarkable module from Lonely Binary is here to revolutionize your timekeeping experience.

Low power, high performance: The DS1302 is engineered to operate on unbelievably low power, ensuring that your clock stays ticking while consuming less than 1uW of energy. Say goodbye to battery drain and hello to optimized efficiency.

Seamless communication: With its simple serial interface, the Lonely Binary DS1302 effortlessly communicates with your microprocessor, creating a seamless connection that keeps your time synchronized and accurate.

All-inclusive timekeeping: From seconds to years, this real-time clock/calendar has got you covered. It provides precise information on seconds, minutes, hours, day, date, month, and year, ensuring you never miss a beat.

Automatic adjustments, no worries: The DS1302 takes care of the little details, automatically adjusting the end of the month date for months with fewer than 31 days. Leap year corrections? Consider it done. Sit back, relax, and let your clock do the hard work.

The choice is yours: Embrace flexibility with the Lonely Binary DS1302. Select your preferred time format with the clock's ability to operate in either the 24-hour or 12-hour format. And don't forget the handy AM/PM indicator to keep you on track throughout the day.

It's time to elevate your timekeeping game with the Lonely Binary DS1302 Real-Time Clock Module. Designed for perfection and backed by the expertise of Lonely Binary, this module is your ultimate timekeeping companion. Don't settle for ordinary – choose Lonely Binary and experience timekeeping like never before.


Tech Specs

Unleash the power of time The Lonely Binary DS1302 Real-Time Clock Module brings you the ability to calculate seconds, minutes, hours, days, weeks, months, and years with precision, all the way up to the year 2100. Leap years are no match for this clock's intelligent design.
Ample temporary data storage With its 31 8-bit temporary data storage RAM, the DS1302 ensures efficient and reliable data handling, allowing you to store and retrieve information effortlessly.
Streamlined serial I/O port Say goodbye to pin overload! The DS1302 features a convenient serial I/O port mode that minimizes the number of pins required, simplifying your connections and saving valuable space.
Versatile voltage range The DS1302 operates flawlessly within a wide range of operating voltages, from 2.0V to 5.5V. Enjoy flexibility and compatibility with various power sources and systems.
Ultra-low power consumption Experience efficiency like never before with the DS1302's impressive working current of less than 300nA at 2.0V. Bid farewell to energy wastage and embrace a greener future.
Seamless data transfer Whether you prefer single-byte transfers or multi-byte transfer bursts, the DS1302 has you covered. Enjoy the convenience of reading or writing clock and RAM data with ease.
Package options to suit your needs Choose between the 8-Pin DIP Package or the optional 8-Pin SOIC Package based on surface mount, catering to your specific installation requirements.
Simple 3-wire interface The DS1302 keeps it simple with its straightforward 3-wire interface, ensuring easy integration with your existing setup.
TTL compatibility Designed to be compatible with TTL, the DS1302 operates flawlessly with a Vcc of 5V, providing seamless connectivity and reliable performance.
Dual power supply capability Keep your timekeeping uninterrupted with the DS1302's dual power supply support, accommodating both main and backup power sources for added reliability and peace of mind.
Net Weight 6.5 g
Dimension (L) 42 mm x (W) 23 mm x (H) 9 mm


Lonely Binary Product Schematics


What’s in the Box

There are 3 pieces in the retail box.
The listing price is for

  • 1 x DS1302 Module



  • Australia Orders over $55 - Your order will enjoy free shipping via Australia Post Standard Shipping Services. 
  • International Orders over $99 - Your order will be posted via Australia Post Air Mail Services. 

Raspberry Pi board / Micro:bit board / NVIDIA board will be excluded; All PCB orders will not enjoy free shipping. Distributors and wholesale orders are not eligible for free shipping.


At this time, LONELY BINARY is an online-only business, with our products available through lonelybinary.com. This allows us to keep the cost down for the customer. Orders cannot be picked up. 


We ship Australia wide to all addresses, including PO Box, Parcel Locker, etc.All Australian orders will be shipped via Australia Post, Courier Please or Fastway Couriers (Aramex). International Orders will be shipped via Australia Post or DHL. Your order will be shipped within one business day after we receive payment, providing the items are in stock.

  • Standard Shipping
    Sent via standard Australia Post stamped letter mail, typically 5-9 business days. No tracking/support available other than confirmation of dispatch.
  • Express Post
    Sent via Australia Post Express Service, Fastway Courier or Courier Please, 1 – 2 business days for metro orders, potentially longer for orders outside of metro zones, with full tracking.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Shipping costs for international orders vary depending on location and package size, where possible we have kept this to flat rate charges to reduce confusion. International orders are shipped through Australia Post and DHL courier service depending on the most economical at the time. 


Shipping Method via Delivery Area Delivery Time(business day) Tracking No. Weight Limit
DHL Asia 1-2 YES No Limit
western EU 2-3 YES No Limit
eastern EU 3-5 YES No Limit
North America 2-3 YES No Limit
Australia 2-3 YES No Limit
South America 3-5 YES No Limit
South Africa 3-5 YES No Limit


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