Texas Instruments SN65HVD1792D, RS422/RS485 transceiver, full-duplex, 1 Mbps, 4.5V~5.5V supply, 14-SOIC package, -40°C~105°C operating temperature.
| 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 | Tube |
| Data rate | 1Mbps |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 50 mV |
| Number of drivers (Receivers) | 1/1 |
The 50 mV receiver hysteresis helps reject noise on long twisted-pair runs — a practical edge when the cable leaves the cabinet.
It is not a 3.3 V transceiver — if your UART or controller is 3.3 V, you will need level translation on the logic-side pins (DE, RE, DI, RO) or pick a 3.3 V variant in the same family.
No. A 3.3 V signal may not be recognised as a valid logic high across temperature. Use a level shifter or a 3.3 V-rated RS-485 transceiver if your controller is 3.3 V.
The data rate is 1 Mbps. That covers most RS-485 fieldbus applications (Modbus RTU, Profibus DP at lower speeds) but not high-speed backplane links.
Within TI's own 65HVD family, the SN65HVD1792D is a full-duplex 5 V part. A pin-compatible alternative with the same footprint would be another TI full-duplex RS-485 transceiver in the 14-SOIC package, such as the SN65HVD1791D (half-duplex) or SN65HVD1793D (higher data rate). For a second-source, check the Maxim MAX3485 family (3.3 V) or the Analog Devices ADM3485 family — but those are 3.3 V parts, not drop-in 5 V replacements.