Texas Instruments SN65HVD1791DR, RS-422/RS-485 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 115 kbps, 4.5V–5.5V Supply, 50 mV Hysteresis, -40°C to 105°C, 14-SOIC Package.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C~105°C |
| Duplex | Full |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 115Kbps |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 50 mV |
| Number of drivers (Receivers) | 1/1 |
The 50 mV receiver hysteresis provides clean signal recovery on a heavily loaded or long stub bus, reducing the risk of bit errors from reflections or coupled noise.
For volume builds or long-life designs, this removes the sourcing risk of a phase-out part. The base product number 65HVD1791 covers multiple package and tape options, so alternate reel quantities (e.g., SN65HVD1791D) are available through the same supply chain.
The SN65HVD1791DR supports a data rate of 115 kbps. This is a moderate-speed transceiver suited for industrial fieldbus and building automation links where noise immunity is prioritized over high throughput.
There is no 3.3 V variant within this base product number.