DS1339C-2 datasheet by Maxim Integrated Products

DS1339C-2 Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the DS1339C-2?
  The recommended crystal oscillator frequency for the DS1339C-2 is 32.768 kHz, which is a standard frequency for real-time clocks.
• How does the DS1339C-2 handle battery switchover during power failure?
  The DS1339C-2 has a built-in battery 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-2 in battery-backed mode?
  The typical current consumption of the DS1339C-2 in battery-backed mode is around 1.5 μA, making it suitable for battery-powered applications.
• Can the DS1339C-2 be used in a system with multiple power domains?
  Yes, the DS1339C-2 can be used in a system with multiple power domains, as it has a separate power pin for the battery-backed section, allowing it to operate independently of the main power domain.
• How accurate is the DS1339C-2's real-time clock?
  The DS1339C-2's real-time clock has an accuracy of ±2 minutes per year at 25°C, making it suitable for most applications requiring a high degree of timekeeping accuracy.