• Overview
  • Spec
  • Design Guides
  • RoHS/
    REACH
    etc
  • References
  • Built in frequency adjusted 32.768 kHz crystal unit
  • Interface Type : I2C-Bus interface
  • Interface voltage range : 1.6V to 5.5V
  • Wide voltage for time keeping : 1.1V to 5.5V
  • Low backup current : 300 nA ( Typ. ) 3V
  • Auto power switching function : Switchover by main power supply monitor.
  • Backup battery charge control function : For the rechargeable lithium batteries.
  • Reset functions with a delay : Detect a main power supply and remove the reset.
  • The various function include full calendar, alarm, timer, etc.
  • Epson prepared Linux driver for development
    Link
    The registered trademark Linux® is used pursuant to a sublicense from LMI(Linux Mark Institute)