Texas Instruments SN65HVD73D, RS-422/RS-485 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 20Mbps, 3V–3.6V Supply, -40°C~125°C, 14-SOIC 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 | Tube |
| Data rate | 20Mbps |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 70 mV |
| Number of drivers (Receivers) | 1/1 |
The SN65HVD73D: It integrates one driver and one receiver with 70 mV of receiver hysteresis, which cleans up signal integrity on long cable runs or in electrically noisy factory-floor environments.
The SN65HVD73D logic inputs are not 5V-tolerant per the 3V–3.6V supply range. Level translation on the driver enable and data lines is needed.
The SN65HVD73D is rated for 20 Mbps data rate, while the SN65HVD72 is a lower-speed variant. Both are full-duplex RS-485 transceivers in the same 14-SOIC footprint and supply range, so the choice comes down to the bus speed the application needs.
If the host controller uses 5V logic, external level shifters or a resistive divider on the driver enable and data lines are required.