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Real Time Clock Module Breakout Board

Part No.: 2900-400

Shipping Weight: 4.00 g.

Price Ex VAT: £9.81

(£11.77 inc tax)
In stock

Our quantity discounts (excl VAT):

Buy Quantity  10+ 
Price Ex VAT  £9.00 
1962 Techno Points
This a custom designed module from Sparkfun BOB-00099 for the DS1307 Real Time Clock. The module comes fully assembled and pre-programmed with the current time (ok, so it's our current time - MST). The included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17 years typical) without external 5V power. The DS1307 is accessed via the I2C protocol. We've written a test-bed to program the modules. This test-bed code should give you some insight on how to interface the module to any mircocontroller using our example software I2C and BCD routines.


* Two wire I2C interface
* Hour : Minutes : Seconds AM/PM
* Day Month, Date - Year
* Leap year compensation
* Accurate calendar up to year 2100
* Battery backup included
* 1Hz output pin
* 56 Bytes of Non-volatile memory available to user

Dimensions: 20x20mm

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