The maximum cable length supported by the DS2502S is 100 meters, but it depends on the cable quality, noise environment, and data rate. It's recommended to use a shielded twisted-pair cable to minimize noise and ensure reliable communication.
To ensure reliable communication over the 1-Wire bus, use a pull-up resistor between the 1-Wire bus and VCC, and a capacitor between the 1-Wire bus and GND to filter out noise. Also, ensure that the master device is capable of providing a strong pull-up signal to the 1-Wire bus.
Yes, the DS2502S can be used with multiple masters on the same 1-Wire bus, but it requires careful bus management to avoid conflicts. Each master should have its own unique ROM code and should not attempt to access the bus simultaneously.
The DS2502S has built-in error detection and correction mechanisms. If an error occurs, the master device should retry the transaction. The number of retries depends on the application requirements, but a typical value is 3-5 retries before considering the transaction failed.
The power consumption of the DS2502S depends on the operating mode. In active mode, the typical current consumption is 1.5mA, and in standby mode, it is 1μA. The power consumption can be further reduced by using the low-power mode.
DS2502S datasheet
by Maxim Integrated Products
