The THVD1454 is a flexible half duplex RS-485 transceiver. The device has slew rate control pin SLR which can be used to set the device in maximum 20 Mbps mode or slew rate limited 500 kbps mode. THVD1454 also has on-chip 120 Ω termination resistor across bus terminals A/B which is controlled using TERM pin.