MCP79520
MCP79520 is Battery-Backed SPI Real-Time Clock/Calendar manufactured by Microchip Technology.
- Part of the MCP79510 comparator family.
- Part of the MCP79510 comparator family.
Features
- Real-Time Clock/Calendar (RTCC):
- Hours, minutes, seconds, hundredths of a second, day of week, date, month, year
- Leap year pensated to 2399
- 12/24-hour modes
- Oscillator for 32.768 k Hz Crystals:
- Optimized for 6-9 p F crystals
- On-Chip Digital Trimming/Calibration:
- ±1 ppm resolution
- ±259 ppm range
- Dual Programmable Alarms
- Clock Output Function with Selectable Frequency
- Power-Fail Timestamp:
- Time logged on switchover to and from Battery mode
Low-Power Features
- Wide Voltage Range:
- Operating voltage range of 1.8V to 3.6V
- Backup voltage range of 1.3V to 3.6V
- Low Typical Timekeeping Current:
- Operating from VCC: 1.2 µA at 3.0V
- Operating from VBAT: 1.0 µA at 3.0V
- Automatic Switchover to Battery Backup
User Memory
- 64-Byte Battery-Backed SRAM
- 1 Kbit or 2 Kbit EEPROM:
- Software write-protect
- Page write up to 8 bytes
- Endurance: 1M erase/write cycles
EEPROM (Kbits)
1 2 1 2 1 2
Unique ID
Blank
Blank EUI-48™ EUI-48™ EUI-64™ EUI-64™
- 128-Bit Protected EEPROM Area:
- Robust write unlock sequence
- EUI-48™ MAC address (MCP795X1)
- EUI-64™ MAC address (MCP795X2)
Operating Ranges
- SPI Serial Interface:
- SPI clock rate up to 5...
