Yes, you will need to add 2 * 47K resistors to pull up and put down the data line, and It would be better if you add 2*P6KE6.8 between data lines and GND to protect the ICs, also you should be added 120Ohm as terminator resistor on the end of data line.
Yes, you will need to add 2 * 47K resistors to pull up and put down the data line, and It would be better if you add 2*P6KE6.8 between data lines and GND to protect the ICs, also you should be added 120Ohm as terminator resistor on the end of data line.