10 Mbps half-duplex RS485 transceiver in 8-SOIC
What the 10 Mbps rating means for bus timing
At 10 Mbps the bit period is 100 ns, so the driver's rise/fall time and the receiver's propagation delay must fit within that window with margin. The SN65HVD485EDR is specified for this rate, meaning it can sustain full-speed RS485 frames without bit errors on properly terminated cables up to a few hundred feet. For slower baud rates (115.2 kbps, 1 Mbps) the part works identically, just with more timing slack.