DS1302+ datasheet by Maxim Integrated Products

DS1302+ Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the DS1302+?
  The recommended crystal oscillator frequency for the DS1302+ is 32.768 kHz.
• How do I set the time on the DS1302+?
  The time can be set on the DS1302+ by writing the desired time and date values to the corresponding registers (seconds, minutes, hours, day, date, month, and year) using the I2C interface.
• What is the purpose of the RST pin on the DS1302+?
  The RST (Reset) pin on the DS1302+ is an active-low input that resets the device when pulled low. It can be used to reset the device and restart the oscillator.
• Can I use the DS1302+ with a battery backup?
  Yes, the DS1302+ can be used with a battery backup to maintain the time and date when the main power is lost. The device has a built-in battery switch-over circuit that automatically switches to the battery when the main power is lost.
• What is the operating temperature range of the DS1302+?
  The operating temperature range of the DS1302+ is -40°C to +85°C.