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Texas Instruments THVD1450DGK — Interface & Transceivers

TI THVD1450DGK RS-485 Transceiver, 50 Mbps, Half-Duplex

MPNTHVD1450DGK
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Texas Instruments THVD1450DGK, RS-485 half-duplex transceiver, 50 Mbps data rate, 3V to 5.5V supply, 1/1 driver/receiver, 30 mV hysteresis, -40°C to 125°C, 8-VSSOP package, Tube.

$4.2400Ref. price · indicative, final on quote
Texas Instruments THVD1450DGK datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

THVD1450DGK specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS485
Operating temperature-40°C~125°C(TA)
DuplexHalf
PackageTube
Data rate50Mbps
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Receiver hysteresis30 mV
Number of drivers (Receivers)1/1

Product details

50 Mbps RS-485 transceiver for industrial bus links

The 3V to 5.5V supply range means it can run from a 3.3V rail in a mixed-voltage backplane or from a traditional 5V industrial supply without a separate regulator. A single driver and single receiver pair handles the differential bus, and the 30 mV receiver hysteresis cleans up noise on long cable runs where ground offset and reflections eat into the signal margin.

Temperature grade and supply flexibility

The 3V to 5.5V supply tolerance is wide enough that a 3.3V rail with 5% regulation still keeps the transceiver in spec; at the 5V end it matches legacy 5V-only bus nodes without level translation.

Frequently asked questions

Is THVD1450DGK compatible with 3.3V supply?

Yes. The supply range covers 3V to 5.5V, so the THVD1450DGK operates directly from a 3.3V rail without a separate regulator. At 3.3V the driver output swing still meets the RS-485 differential output spec for bus lengths up to several hundred meters at lower data rates.

What is the best replacement or equivalent for THVD1450DGK?

Within the THVD1450 family, the base product number covers multiple speed and package variants. For a pin-compatible alternative at the same 50 Mbps speed, look at the THVD1450D (SOIC-8) if the VSSOP footprint is not required. For a lower-speed drop-in, the THVD1420 (20 Mbps) shares the same pinout and supply range.