MAX31331 Datasheet (PDF) Download
Analog Devices
MAX31331

Description

The MAX31331 ultra-low power, real-time clock (RTC) is a time-keeping device that consumes nominal 65nA timekeeping current, extending battery life. The MAX31331 supports a wide range of 32.768kHz crystals.

Key Features

  • The 32-byte timestamp registers double as RAM storage
  • The clock/calendar provides seconds, minutes, hours, day, month, year, and date information
  • A 1/128 second register is available for a sub-second timestamp resolution
  • The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year
  • The clock operates in 24-hour/12-hour format
  • The device supports the -40°C to +85°C extended temperature range