DS1339C-3# datasheet by Maxim Integrated Products

DS1339C-3# Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the DS1339C-3#?
  The recommended crystal oscillator frequency for the DS1339C-3# is 32.768 kHz, which is a standard frequency for real-time clocks.
• How does the DS1339C-3# handle battery switchover during power failure?
  The DS1339C-3# has an internal switchover circuit that automatically switches to the backup battery during power failure, ensuring continuous operation of the real-time clock.
• What is the typical current consumption of the DS1339C-3# in battery-backed mode?
  The typical current consumption of the DS1339C-3# in battery-backed mode is around 1.5 μA, making it suitable for battery-powered applications.
• Can the DS1339C-3# be used in a system with multiple power domains?
  Yes, the DS1339C-3# can be used in a system with multiple power domains, as it has a separate VCC pin for the real-time clock and a separate VBAT pin for the battery backup.
• How does the DS1339C-3# handle clock accuracy over temperature?
  The DS1339C-3# has an internal temperature compensation circuit that ensures clock accuracy over a wide temperature range of -40°C to +85°C.