DS2450S datasheet by Maxim Integrated Products

DS2450S Frequently Asked Questions (FAQs)

• What is the maximum number of devices that can be connected to the 1-Wire bus?
  The DS2450S can support up to 256 devices on the 1-Wire bus, but the actual number of devices that can be connected depends on the specific application and the bus capacitance.
• How do I ensure reliable communication over the 1-Wire bus?
  To ensure reliable communication, it is recommended to use a pull-up resistor on the 1-Wire bus, keep the bus length short, and minimize electromagnetic interference (EMI) and radio-frequency interference (RFI).
• What is the maximum cable length for the 1-Wire bus?
  The maximum cable length for the 1-Wire bus depends on the specific application and the bus capacitance, but a general guideline is to keep the cable length under 100 meters.
• Can I use the DS2450S with a 5V power supply?
  Yes, the DS2450S can operate with a 5V power supply, but it is recommended to use a 3.3V power supply for optimal performance and to minimize power consumption.
• How do I implement a 1-Wire bus reset?
  A 1-Wire bus reset can be implemented by pulling the 1-Wire bus low for a minimum of 480 μs and then releasing it to allow the bus to float high.