General Description
The DS3232M is a low-cost, extremely accurate, I2C real-time clock (RTC) with 236 bytes of battery-backed SRAM. The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS) resonator enhances the long-term accuracy of the device and reduces the piece part count in a manufacturing line.

FEATUREs
♦ Timekeeping Accuracy ±5ppm (±0.432 Second/Day) from -40NC to +85NC
♦ 236 Bytes of Battery-Backed User SRAM
♦ Battery Backup for Continuous Timekeeping
♦ Low Power Consumption
♦ Functionally Compatible to DS3232
♦ Complete Clock Calendar Functionality Including Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Up to Year 2100
♦ Two Time-of-Day Alarms
♦ 1Hz and 32.768kHz Outputs
♦ Reset Output and Pushbutton Input with Debounce
♦ Fast (400kHz) I2C-Compatible Serial Bus
♦ +2.3V to +4.5V Supply Voltage
♦ Digital Temp Sensor with ±3NC Accuracy
♦ -40NC to +85NC Temperature Range
♦ 8-Pin SO (150 mils) Package
♦ Underwriters Laboratories (UL) Recognized

APPLICATIONs
  Power Meters
  Industrial Applications