DS1374U-33+T&R datasheet by Maxim Integrated Products

DS1374U-33+T&R Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DS1374U-33+T&R?
  The recommended power-up sequence is to apply VCC first, followed by VBAT. This ensures that the internal registers are properly initialized.
• How do I ensure that the DS1374U-33+T&R oscillator starts reliably?
  To ensure reliable oscillator startup, it is recommended to add a 1-10 kΩ resistor in series with the X1 pin and a 10-100 pF capacitor from X1 to GND.
• What is the maximum frequency deviation of the DS1374U-33+T&R oscillator?
  The maximum frequency deviation of the DS1374U-33+T&R oscillator is ±100 ppm over the entire operating temperature range.
• How do I handle the battery switchover function in the DS1374U-33+T&R?
  The battery switchover function is automatic. When VCC falls below VBAT, the device automatically switches to battery power. No external intervention is required.
• What is the purpose of the RST pin on the DS1374U-33+T&R?
  The RST pin is an active-low reset input that resets the device when pulled low. It can be used to reset the device in case of a fault or to initialize the device during power-up.