Texas Instruments SN65HVD1176DR, RS422/RS485 Transceiver, Half-Duplex, 1/1 Drivers/Receivers, 40Mbps, 4.75V~5.25V Supply, 8-SOIC, -40°C~85°C.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 4.75V ~ 5.25V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C~85°C |
| Duplex | Half |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 40Mbps |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 40 mV |
| Number of drivers (Receivers) | 1/1 |
Dropping it into a 3.3 V bus system requires a level translator or a separate 5 V supply. The 40 Mbps data rate is achievable over short twisted-pair runs; at longer cable lengths the practical bit rate drops due to signal attenuation, but the driver's differential output voltage stays within RS-485 levels across the full temperature range.
Yes. It will not operate from a 3.3 V supply.
The SN65HVD1176DR is rated for 40 Mbps signaling. This is the maximum bit rate; practical throughput depends on cable length, termination, and bus loading.
Within the same TI family, the SN65HVD1176D (non-tape-and-reel) shares the same die and pinout. For a 3.3 V supply variant, look at the SN65HVD1176-EP or other 3.3 V RS-485 transceivers — but those are not pin-compatible without supply changes.