DS1302Z+T&R datasheet by Maxim Integrated Products

DS1302Z+T&R Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the DS1302Z?
  The recommended crystal oscillator frequency for the DS1302Z is 32.768 kHz.
• How do I set the time on the DS1302Z?
  The time can be set on the DS1302Z 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 backup battery life of the DS1302Z?
  The backup battery life of the DS1302Z depends on the type and capacity of the battery used, but typically ranges from 5 to 10 years.
• Can the DS1302Z be used in a battery-powered device?
  Yes, the DS1302Z is designed for use in battery-powered devices and has a low power consumption of 1.5 μA (typical) in battery-backed mode.
• How accurate is the DS1302Z's clock?
  The DS1302Z's clock accuracy is ±2 minutes per year at 25°C, and ±10 minutes per year over the operating temperature range of -40°C to +85°C.