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Texas Instruments SN65HVD1793DR — Interface & Transceivers

SN65HVD1793DR RS-485/RS-422 Transceiver, 10 Mbps, 14-SOIC

MPNSN65HVD1793DR
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Texas Instruments SN65HVD1793DR, RS422, RS485 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 10Mbps, 4.5V ~ 5.5V Supply, -40°C ~ 105°C, 14-SOIC.

$2.8845Ref. price · indicative, final on quote
Texas Instruments SN65HVD1793DR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD1793DR specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~105°C
DuplexFull
PackageTape & Reel (TR)
Data rate10Mbps
Case14-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

5V-only full-duplex transceiver for 10 Mbps RS-485/RS-422 buses

The Texas Instruments SN65HVD1793DR is a full-duplex RS-422/RS-485 transceiver in a 14-SOIC package, rated for 10 Mbps signaling on differential buses.

10 Mbps data rate and the cable-length tradeoff

At 10 Mbps the SN65HVD1793DR supports short-haul runs — typically under 100 meters — where the bit period is tight enough that cable capacitance and stub length matter. For longer runs at lower rates the same part works fine; the driver slew is not limited, so the designer controls edge rate through termination and stub topology rather than a slow-mode pin. The 50 mV hysteresis on the receiver helps reject common-mode noise that couples onto the twisted pair in industrial environments.

Frequently asked questions

Can SN65HVD1793DR operate at 3.3V?

No. It is a 5 V-only transceiver and does not support 3.3 V logic levels on the bus or the digital interface.

What is the closest pin-compatible alternative to SN65HVD1793DR?

Within the same base family, the SN65HVD1792 is a half-duplex variant. The SN65HVD1793DR is full-duplex, so the two are not pin-compatible substitutes. For a full-duplex alternative, look at other TI parts sharing the 65HVD179x base number with the same 14-SOIC footprint and supply range.