RX8111CE

Block diagram

Overview

• Interface Type
  • I2C-Bus interface Fast-Mode 400 kHz
• Auto power switching function
  • The VDD voltage is monitored and it switches to the backup power supply by the automatic operation
  • Backup power supply switching voltage 1.2 V Min.
• Clock output function
  • Output frequency is selectable from 32.768 kHz, 1024 Hz,1 Hz
• Wakeup timer function
  • Selectable from 244 micro second to 32 years (24 bit 1 ch.)
  • Timer source clock selectable from 1/60 Hz, 1 Hz, 64 Hz, 4096 Hz
  • Auto release after interrupt output from /INT pin at timer completes
  • This operation is auto repeat with a selected cycle, it can be used like a watchdog timer
• Time stamp function
  • 8 times stamped from year to 1/256 seconds
  • The time-stamp trigger inputs from EVIN pin, self-monitoring and I2C software command
  • EVIN pin has function of chattering-cancel
• Alarm function
  • It is possible program from year to second
• Self-monitoring interruption
  • Crystal oscillation stop. VBAT low, VDD low

Specifications (characteristics)

Pin function

Terminal connection/External dimensions

(Unit: mm)

Footprint 

(Unit: mm)

To maintain stable operation, provide a 0.1uF by-pass capacitor
at a location as near as possible to the power source terminal of the crystal product (between Vcc - GND)