Texas Instruments SN65HVD74DGKR, RS-422/RS-485 transceiver, full duplex, 20 Mbps data rate, 3 V to 3.6 V supply, -40°C to 125°C, 8-VSSOP package.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 3.6V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C~125°C |
| Duplex | Full |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 20Mbps |
| Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) |
| Receiver hysteresis | 70 mV |
| Number of drivers (Receivers) | 1/1 |
The Texas Instruments SN65HVD74DGKR is a full-duplex RS-485/RS-422 transceiver in an 8-VSSOP package, rated for 20 Mbps signaling over differential buses.
No external regulator needed if the board's 3.3 V is already regulated. The 70 mV hysteresis on the receiver inputs helps reject reflections on unterminated or lightly loaded stubs — a common issue when retrofitting RS-485 into existing wiring.
It is rated for 20 Mbps, which supports high-speed RS-485/422 links for industrial automation, motor drives, and telecom backhaul.