MCP7940N Description
MCP7940N Battery-Backed I2C™ Real-Time Clock/Calendar with SRAM Timekeeping.
MCP7940N Key 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