Datasheet Summary
Battery-Backed I2C™ Real-Time Clock/Calendar with SRAM
Timekeeping Features
:
- Real-Time Clock/Calendar (RTCC):
- Hours, Minutes, Seconds, Day of Week, Day, Month, Year
- Leap year pensated to 2399
- 12/24 hour modes
- Oscillator for 32.768 kHz Crystals:
- Optimized for 6-9 pF crystals
- On-Chip Digital Trimming/Calibration:
- ±1 PPM resolution
- ±129 PPM range
- Dual Programmable Alarms
- Versatile Output Pin:
- Clock output with selectable frequency
- Alarm output
- General purpose output
- Power-Fail Time-Stamp:
- Time logged on switchover to and from
Battery mode
Low-Power Features
:
- Wide Voltage Range:
- Operating voltage range of 1.8V to 5.5V
- Backup voltage range of...