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.
To ensure reliable communication, it is essential to follow the 1-Wire bus layout guidelines, use a strong pull-up resistor, and implement error checking and correction mechanisms in the firmware. Additionally, minimizing noise and electromagnetic interference (EMI) on the bus is crucial.
The typical power consumption of the DS1990A-F5 is around 1.5mA during active operation and less than 1µA in standby mode. However, this can vary depending on the specific application and operating conditions.
Yes, the DS1990A-F5 can be used in a multi-drop configuration, where multiple devices are connected to the same 1-Wire bus. Each device must have a unique ROM ID to ensure proper addressing and communication.
Conflicts can be handled using a technique called 'bit arbitration', where each device checks the bus state before transmitting. If a conflict is detected, the device with the higher priority (lower ROM ID) wins the arbitration and continues transmission.
