DS1232LP+ datasheet by Maxim Integrated Products

DS1232LP+ Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the DS1232LP+?
  The DS1232LP+ requires careful layout and placement to ensure proper operation. It is recommended to place the device close to the battery, use short traces, and avoid routing signals under the device. A solid ground plane under the device is also recommended.
• How do I handle the reset output (RST) during power-up?
  The reset output (RST) is active-low and goes low during power-up. It is recommended to connect a pull-up resistor to the RST pin to ensure a clean reset signal. The value of the pull-up resistor depends on the specific application, but a 1kΩ to 10kΩ resistor is a good starting point.
• What is the purpose of the VCC pin, and how should it be connected?
  The VCC pin is the power input for the internal voltage regulator. It should be connected to a stable voltage source, such as a battery or a regulated power supply. The VCC pin should not be connected to the output of the voltage regulator (VOUT).
• How do I ensure the DS1232LP+ is in a low-power state during shutdown?
  To ensure the DS1232LP+ is in a low-power state during shutdown, the SHDN pin should be driven low. This will disable the internal voltage regulator and reduce the quiescent current to a minimum.
• What is the maximum input voltage for the DS1232LP+?
  The maximum input voltage for the DS1232LP+ is 12V. Exceeding this voltage may damage the device.