SD2403 Real-Time Clock Module (Gadgeteer Arduino Compatible)

SD2403 Real-Time Clock Module (Gadgeteer Arduino Compatible) — DFRobot — TOY0020

Low-power RTC module with SD2403 IC, I2C interface, alarm function, and CR1220 backup battery. Compatible with 3.3V and 5V systems; includes Gadgeteer cable.

Pinout

Logical pinout · physical placement not verified
SD2403 REAL-TIME CLOCKVCCSCLGNDBatterySDA
  • VCC
    Type · Power
  • GND
    Type · Ground
  • SDA
    Type · I2C
  • SCL
    Type · I2C
  • Battery
    Type · Power

RTC & timing

26 other options

DS3231/DS3232 temperature-compensated RTCs, the budget PCF8523 and DS1307, the Si5351A clock generator (8kHz–160MHz), and bare 16MHz crystals — matched to drift tolerance and supply voltage.

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