DS2502S/T&R datasheet by Maxim Integrated Products

DS2502S/T&R Frequently Asked Questions (FAQs)

• What is the maximum number of devices that can be connected to a single 1-Wire bus?
  The maximum number of devices that can be connected to a single 1-Wire bus is limited by the bus capacitance and the pull-up resistor value. Typically, up to 10 devices can be connected, but this can be increased with the use of repeaters or buffers.
• How do I ensure reliable communication over long 1-Wire bus lengths?
  To ensure reliable communication over long 1-Wire bus lengths, use a stronger pull-up resistor, add repeaters or buffers, and ensure that the bus is properly terminated. Additionally, consider using a 1-Wire bus extender or a 1-Wire to I2C bridge.
• What is the maximum cable length for a 1-Wire bus?
  The maximum cable length for a 1-Wire bus depends on the cable type, pull-up resistor value, and bus capacitance. Typically, cable lengths up to 100 meters are possible, but this can be increased with the use of repeaters or buffers.
• How do I handle multiple devices with the same ROM ID on the same 1-Wire bus?
  To handle multiple devices with the same ROM ID on the same 1-Wire bus, use a unique alias or nickname for each device, or use a 1-Wire bus switch or multiplexer to isolate each device.
• What is the power consumption of the DS2502S/T&R in standby mode?
  The power consumption of the DS2502S/T&R in standby mode is typically in the range of 1-5 μA, depending on the supply voltage and operating conditions.