Texas Instruments SN65HVD1780DR, RS-422/RS-485 Half-Duplex Transceiver, 115 kbps, 3.15 V to 5.5 V supply, 8-SOIC package, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 3.15V ~ 5.5V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C ~ 125°C |
| Duplex | Half |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Data rate | 115Kbps |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 50 mV |
| Number of drivers (Receivers) | 1/1 |
It integrates one driver and one receiver in an 8-pin SOIC package, with a data rate of 115 kbps—sufficient for most Modbus RTU, BACnet MS/TP, and similar fieldbus links.
Receiver hysteresis of 50 mV provides noise immunity on long cable runs, reducing the likelihood of bit errors from ground shifts or coupled interference.
The data rate is 115 kbps, appropriate for standard industrial fieldbus applications like Modbus RTU.
The SN65HVD1781DR is a pin-compatible variant with a higher data rate of 1 Mbps, while the SN65HVD1780DR is limited to 115 kbps. Both share the same 8-SOIC package and supply range.