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MCP79401 - I2C Real-Time Clock Calendar

Download the MCP79401 datasheet PDF. This datasheet also covers the MCP79400 variant, as both devices belong to the same i2c real-time clock calendar family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • Real-Time Clock/Calendar (RTCC): - Hours, Minutes, Seconds, Day of Week, Day, Month, Year - Leap year compensated 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.
  • Dual Programmable Alarms.
  • Versatile Output Pin: - Clock output with selectable frequency - Alarm output - General purpose output.
  • Power-Fail Time-Stamp: - Time logg.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MCP79400-MICROCHIP.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Microchip Technology

Part Number Description
MCP79400 I2C Real-Time Clock Calendar
MCP79402 I2C Real-Time Clock Calendar
MCP7940M Real-Time Clock/Calendar
MCP7940N Real-Time Clock/Calendar
MCP79410 Real-Time Clock/Calendar

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MCP79400/MCP79401/MCP79402 Battery-Backed I2C Real-Time Clock/Calendar with SRAM and Protected EEPROM Device Selection Table Part Number MCP79400 MCP79401 MCP79402 Protected EEPROM Unprogrammed EUI-48™ EUI-64™ Timekeeping Features • Real-Time Clock/Calendar (RTCC): - Hours, Minutes, Seconds, Day of Week, Day, Month, Year - Leap year compensated to 2399 - 12/24-hour modes • Oscillator for 32.