Grove - RTC

93% of 100
Real-Time Clock (RTC) counts into seconds with Leap-Year compensation valid up to 2100 Powered with CR 1225 lithium cell battery 56-Byte, Battery-Backed, Nonvolatile (NV)RAM for data storage
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The RTC module is a member of Twig. It is based on the clock chip DS1307 which supports the I2C protocol. It uses a Lithium cell battery (CR1225). The clock/calendar provides seconds, minutes, hours, day, date,month, and year information. The end of the month date 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 AM/PM indicator.

Note: Battery is not included.


  • Real-Time Clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with Leap-Year compensation valid up to 2100

  • 56-Byte, Battery-Backed, Nonvolatile (NV)RAM for data storage

  • I2C serial interface

  • 5V DC supply

  • Programmable Square-Wave output signal

  • Automatic Power-Fail detect and switch circuitry

  • Consumes less than 500nA in Battery-Backup Mode with Oscillator Running


Technical details

Dimensions 130mm x80mm x10mm
Weight G.W 10g
Battery Exclude

Part List

Grove - RTC 1
Grove Cable 1


HSCODE 9114909000
USHSCODE 90230000
UPC 841454107736

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Grove - RTC

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