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Texas Instruments SN65HVD54DG4 — Interface & Transceivers

SN65HVD54DG4 RS-422/RS-485 Transceiver, 5 Mbps, Full Duplex

MPNSN65HVD54DG4
End of Life

Texas Instruments SN65HVD54DG4, RS422/RS485 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 5Mbps Data Rate, 14-SOIC Package, 4.5V~5.5V Supply, -40°C~85°C.

$58.8000Ref. price · indicative, final on quote
Texas Instruments SN65HVD54DG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD54DG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
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

Full-duplex RS-485 at 5 Mbps in a 14-SOIC

The Texas Instruments SN65HVD54DG4 is a full-duplex RS-422/RS-485 transceiver in a 14-SOIC package, rated for 5 Mbps signaling over balanced lines.

5 Mbps data rate — bus timing and cable length

At 5 Mbps the SN65HVD54DG4 supports practical cable lengths around 50–100 m in RS-485 mode, depending on cable capacitance and termination. The full-duplex architecture eliminates the need for direction control, simplifying the firmware and reducing the pin count on the UART side. The 50 mV hysteresis cleans up the received signal on a loaded bus, reducing bit-error rate in noisy factory environments.

The 14-SOIC body (3.90 mm width) is a common footprint that fits existing PCB layouts for RS-485 nodes. Surface-mount assembly keeps the board single-sided compatible for low-cost designs.

Frequently asked questions

Is SN65HVD54DG4 compatible with 3.3V logic?

For 3.3 V logic interface, a level translator or a 3.3 V-tolerant transceiver variant should be considered — the SN65HVD54DG4 does not guarantee correct threshold detection at 3.3 V.

What is the difference between SN65HVD54DG4 and SN65HVD54D?

The SN65HVD54DG4 and SN65HVD54D are electrically identical — same full-duplex RS-485 transceiver, same 5 Mbps data rate, same 14-SOIC package. The difference is the packaging and shipping medium: the DG4 suffix indicates a tube (the D suffix may ship in tube or tape-and-reel depending on the distributor). For BOM purposes they are interchangeable.

Does SN65HVD54DG4 work with RS422?

Yes, the SN65HVD54DG4 is explicitly listed as supporting both RS-422 and RS-485 protocols. For RS-422 point-to-point links it operates at the full 5 Mbps data rate with the same driver and receiver characteristics.