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Texas Instruments SN65HVD34DG4 — Interface & Transceivers

TI SN65HVD34DG4 RS-485/RS-422 Transceiver, 5 Mbps

MPNSN65HVD34DG4
End of Life

Texas Instruments SN65HVD34DG4 RS-485/RS-422 transceiver, full duplex, 5 Mbps data rate, 3V to 3.6V supply, 14-SOIC package, -40°C to 85°C operating temperature.

$58.8000Ref. price · indicative, final on quote
Texas Instruments SN65HVD34DG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD34DG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexFull
PackageTube
Data rate5Mbps
Case14-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

RS-485/RS-422 full-duplex transceiver at 5 Mbps

It handles one driver and one receiver, with a 50 mV receiver hysteresis for noise margin on longer cable runs.

Powered from 3V to 3.6V, this part is sized for a 3.3V nominal supply. The bus pins are RS-485 compliant, so the differential bus levels are not 5V CMOS — they follow the RS-485 standard. The receiver outputs are 3.3V logic levels. If the host UART runs at 5V, a level translator between the transceiver and the controller is needed.

It is not AEC-Q100 qualified, so automotive under-hood or cabin applications would need a different grade.

Frequently asked questions

What is the data rate of SN65HVD34DG4?

The data rate is 5 Mbps, which covers most RS-485 industrial fieldbus applications.

Is SN65HVD34DG4 compatible with 5V logic?

The receiver outputs are 3.3V logic levels. Direct connection to a 5V UART without level shifting may exceed the input voltage tolerance of the transceiver's logic pins.