The 3 Mbps data rate covers Profibus and Modbus RTU at higher baud rates, while the 130 mV receiver hysteresis provides noise margin on long twisted-pair runs without external biasing.
Last-time-buy — sourcing window is closing
This means TI has issued a product discontinuation notice, and the final purchase window is active. Once the last-time-buy period closes, the part will no longer be available through authorized distribution. For production runs that still need this exact footprint and protocol, securing inventory now is the only path to avoid a redesign.
5 V supply and 130 mV hysteresis — noise margin on the cable
The 5 V supply rail gives the SN65HVD24D a differential output swing that exceeds the RS-485 minimum of 1.5 V across the common-mode range, which matters when the bus spans hundreds of meters. The 130 mV receiver hysteresis is a real advantage in electrically noisy environments — it prevents the receiver from chattering on slow edges or coupled noise, something a standard 50 mV hysteresis part may struggle with on long stubs. For designs that already have a 5 V rail, this transceiver drops in without a regulator.