MCP79412T-I/MNY

The MCP79412T-I/MNY is a real-time clock/calendar (RTC) with non-volatile memory and battery-backed SRAM, manufactured by Microchip Technology. It includes a highly accurate clock/calendar function, supports battery backup to maintain timekeeping in the event of power loss, and integrates additional features like alarms and user memory.

Key Features:

1. Real-Time Clock/Calendar:

   • Tracks time in hours, minutes, and seconds.
   • Tracks date in day, month, and year with leap-year compensation.

2. Battery-Backed SRAM:

   • Maintains the time and date during main power loss.

3. I2C Interface:

   • Communication via I2C bus for easy integration with microcontrollers and other I2C devices.

4. User Memory:

   • Includes 64 bytes of battery-backed SRAM.
   • 128 bytes of EEPROM with 64-byte protected block for serial number or other critical data.

5. Alarms:

   • Two programmable alarms for time-based events.
   • Configurable for different intervals and conditions.

6. Digital Trimming:

   • Compensates for inaccuracies in the crystal oscillator.

7. Low Power Consumption:

   • Designed for low power operation, which is critical for battery-operated systems.

8. Oscillator Input:

   • Supports a 32.768 kHz crystal oscillator.

Applications:

• Consumer Electronics:
  • Digital clocks, appliances, and smart home devices.
• Industrial Automation:
  • Time-stamping, scheduling, and data logging.
• Automotive:
  • Dashboard clocks, infotainment systems, and telematics.
• Medical Devices:
  • Scheduling alarms, time-sensitive operations, and data logging.
• IoT Devices:
  • Sensor nodes, edge devices, and environmental monitoring systems.