Skip to main content
Log in
Texas Instruments SN65HVD34DR — Interface & Transceivers

SN65HVD34DR RS-485/RS-422 Transceiver, 5 Mbps, 3.3V

MPNSN65HVD34DR
Active

Texas Instruments SN65HVD34DR, RS-422/RS-485 transceiver, full duplex, 5 Mbps, 3V–3.6V supply, 14-SOIC, –40°C to 85°C.

$4.5400Ref. price · indicative, final on quote
Texas Instruments SN65HVD34DR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD34DR specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate5Mbps
Case14-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

Full-duplex RS-485 transceiver for 3.3V industrial buses

The 50 mV of receiver hysteresis provides built-in noise margin on long or electrically noisy cable runs, typical in factory automation, building control, and instrumentation backplanes.

At 5 Mbps the SN65HVD34DR can sustain a 200-meter cable run with proper termination, though practical reach shortens as the baud rate climbs. The full-duplex capability means separate pairs for transmit and receive, eliminating the bus-turnaround dead time that half-duplex parts incur.

No LTB window to track, no forced redesign for a replacement.

Frequently asked questions

Which is better, SN65HVD34DR or SN65HVD35DR?

The SN65HVD34DR is a full-duplex transceiver; the SN65HVD35DR is half-duplex. The choice depends on whether your bus needs separate transmit and receive pairs (full-duplex) or a shared pair with direction control (half-duplex). Both run at 5 Mbps and share the same 3.3V supply and 14-SOIC footprint.