Real Time Clock Module DS3234

HobbyTronics Real Time Clock Module DS3234
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Price: £11.99
(£9.99 + VAT)
Stock Quantity: 2
Backorder not allowed
Model: RTC-DS3234
Manufacturer: HobbyTronics
Average Rating: Not Rated


Real Time Clock Module DS3234

The DS3234 is a low-cost, extremely accurate SPI™ bus real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.


  • Highly Accurate RTC with Integrated Crystal and SRAM Completely Manages All Timekeeping Functions
    • Accuracy ±2ppm
    • Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year, with Leap Year Compensation Valid Up to 2099
    • Two Time-of-Day Alarms
    • Programmable Square-Wave Output
  • SPI Interface Connects to Most Microcontrollers
    • 4MHz SPI Bus Supports Modes 1 and 3
  • 5V or 3.3V operation
  • Dimensions 20mm x 20mm (-.8in x 0.8in)
  • Two mounting holes
  • Includes CR1225 backup battery

The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially by an SPI bidirectional bus.


DS3234 Datasheet

DS3234 Arduino Example code


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Real Time Clock Module DS3234
Click to enlarge
Real Time Clock Module DS3234
Click to enlarge
Real Time Clock Module DS3234
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