MAX3051 is a 3.3V CAN transceiver that can support a maximum speed of 1Mbps. If used for low speed signal transmission, it requires a resistor between the RS pin and the ground to limit the slew rate and enhance the system's EMI performance. The resistor value should be chosen based on the following formula: MAX3051 has no minimum speed limitation. Adjust RRS to limit the maximum transmission rate, which can be between 40kbps to 500kbps. If your system's data transmission speed is 5kbps, then a 40kpbs limit will suffice for calculating the RRS.