Description
DS1307 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. It function with a VCC ranging from 2.3V to 5.5V and has a battery backup.
Besides, there is also a EEPROM AT24C32 to supply you 32K EEPROM to store your data, it is the best choice for your application that needs recoding time, a built battery holder make this module suitable. It is a good substitution for the data logging shield, with even higher time precision.
Key Features
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Size: 28 x 27.2 x 8.5 mm
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Weight: 8g
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Operating voltage :3.3 - 5 .5 V
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Memory chips: AT24C32 (storage capacity 32K)
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IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
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Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
