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SparkFun Real Time Clock Module

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BOB-12708

SKU: BOB-12708

Precisely track time and date for years with the SparkFun Real Time Clock (RTC) Module, which includes a battery for long-term operation. 

This is the SparkFun Real Time Clock (RTC) Module, a small breakout that utilizes the DS1307 to track the current year, month, day, and time. The module comes fully assembled and includes a small CR1225 Lithium coin cell battery that will run the RTC for a minimum of 9 years (typical 17 years) without an external 5V power supply.

The DS1307 RTC is accessed via the I²C protocol. We've written a test-bed to program the modules. This code should provide you with some insight into how to interface the module with any microcontroller using our example software's 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
• 0x68 I²C Address
• 0.75x0.75" (20x20mm)

$8.50

• $8.08 | 10+ units
• $7.65 | 25+ units
• $7.23 | 100+ units

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