Intersil

Real Time Clock/Calendar Tracks Time in Hours, Minutes and Seconds Day of the Week, Day, Month and Year On-chip Oscillator Compensation Over the Operating Temperature Range ±5ppm Over -40°C to +85°C 10-bit Digital Temperature Sensor Output ±2°C Accuracy Customer Programmable Day Light Saving Time 15 Selectable Frequency Outputs 1 Alarm Settable to the Second, Minute, Hour, Day of the Week, Day, or Month Single Event or Pulse Interrupt Mode Battery Reseal™ Function to Extend Battery Shelf Life Automatic Backup to Battery or Super Capacitor Operation to VBAT = 1.8V 1.0µA Battery Supply Current Battery Status Monitor 2 User Programmable Levels Seven Selectable Voltages for Each Level Power Status Brownout Monitor Six Selectable Trip Levels, from 2.295V to 4.675V Oscillator Failure Detection Time Stamp for First VDD to VBAT, and Last VBAT to VDD 128 Bytes Battery-Backed User SRAM I2C Bus™ 400kHz Clock Frequency 1µA Typical Battery Current Pb-Free (RoHS Compliant)