YELUFT DS3231 RTC Module, 3.3V/5V High-Precision Real Time Clock Compatible with Arduino Raspberry Pi - 6PCS

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Wide voltage compatible design: The module supports 2.3V~5.5V wide voltage input, directly connected to mainstream development boards such as Raspberry Pi and Arduino, without the need for additional level conversion circuits, simplifying the hardware design process and quickly deploying in a variety of scenarios such as smart home and industrial control Ultra-stable timing: Built-in temperature compensation crystal oscillator (-40℃~85℃), still maintains ±5ppm (about ±0.432 seconds/day) ultra-high accuracy in extreme environments, with ±3℃ digital temperature sensor, real-time calibration of frequency drift, meeting the requirements of harsh environments such as meteorological monitoring and vehicle-mounted equipment Full calendar function + dual clock architecture: Provides full-field timing of seconds/minutes/hours/weeks/dates/months/years, supports automatic leap year compensation until 2100, and integrates dual calendar system backup + ultra-low power consumption: The module provides continuous power after power failure, and with a 200nA standby current, it solves the problem of time recording Anti-interference & High-speed response: Integrated hardware anti-shake input to filter out electromagnetic interference, reset output function to trigger system protection when voltage is abnormal; 400kHz high-speed I2C bus supports millisecond-level timestamp synchronization