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KAmodM41T82 – a module with RTC clock

KAmodM41T82 is a module with the STMicroelectronics M41T82 RTC clock. The chip allows precise timing, and an additional battery connector allows you to maintain the power supply when the main power is turned off. Communication with the module is realized via I2C bus.

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ID: 575708



5,72€ gross (23% VAT)
4,65€ net

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KAmodM41T82 is a module with with the STMicroelectronics M41T82 RTC clock. The board is equipped with a Pmod I2C standard connector and a KAMAMI connector, that allows easy connection of the module to the evaluation kits. Due to its small dimensions, the product can be used in many development projects, while the Pmod loop connector allows to connect the boards in the series.

A detailed description can be found at:


  • M41T82 chip from STMicroelectronics
    • Precise timing (tenth/hundredth of a second, seconds, minutes, hours, days, date, month, year and century)
    • Ultra-low battery supply current of 365 nA
    • Programmable 8-bit counter
    • 7 bytes of SRAM memory with battery backup
    • Detection of the oscillator stop
    • I2C bus
    • Chip address 0xD0
  • Connector compatible with the Pmod standard, allows serial connection of Pmod I2C modules
  • The connector complies with the KAMAMI standard
  • Embedded jumpers activating pull-up on I2C bus lines
  • Embedded jumper connecting the INT line of the chip to the INT line of Pmod connectors
  • Possibility to supply voltage from 1.95-3.5V
  • Mounting holes with a diameter of 2.5 mm
  • Dimensions: 61.2 x 20.3 x 10 mm