1 pcs : R2025S-E2-FE - Real Time Clock Hi Prec I2C-Bus Real Time Clock Mod

R2025 I2C-Bus Real-Time Clock Module Nisshinbo R2025 I2C-Bus Real-Time Clock (RTC) Module is optimized for super low power consumption, with 0.48mA typical at 3.0V. The R2025 integrates a CMOS RTC IC and a crystal oscillator connected to the CPU by two signal lines, SCL and SDA, and configured to perform serial transmission of time and calendar data to the CPU. The periodic interrupt circuit is configured to generate interrupt signals with six selectable interrupts ranging from 0.5 seconds to 1 month. The two-alarm interrupt circuits generate interrupt signals at preset times. As the oscillation circuit is driven under constant voltage, fluctuation of the oscillator frequency due to supply voltage is low.