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Texas Instruments THVD1450DGKR — Interface & Transceivers

TI THVD1450DGKR RS-485 Transceiver, 50 Mbps, Half-Duplex

MPNTHVD1450DGKR
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Texas Instruments THVD1450DGKR RS-485 transceiver, half-duplex, 50 Mbps data rate, 3V to 5.5V supply, 30 mV receiver hysteresis, -40°C to 125°C operating temperature, 8-VSSOP package.

$3.6700Ref. price · indicative, final on quote
Texas Instruments THVD1450DGKR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

THVD1450DGKR specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS485
Operating temperature-40°C~125°C(TA)
DuplexHalf
PackageTape & Reel (TR); Cut Tape (CT)
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 3.3V and 5V buses

The Texas Instruments THVD1450DGKR is a half-duplex RS-485 transceiver rated for 50 Mbps data rate, covering the supply range from 3V to 5.5V.

Supply flexibility and logic compatibility

Because the supply range spans 3V to 5.5V, this part works on a 3.3V rail without a separate level translator, yet can also drop into a legacy 5V RS-485 bus. The receiver inputs are RS-485 compliant across the full common-mode range, and the 30 mV hysteresis helps reject noise on differential pairs that share a cable tray with drives or solenoids.

That means no last-time-buy pressure for current production runs, and it remains a valid selection for new designs.

Frequently asked questions

Is THVD1450DGKR compatible with 3.3V logic?

Yes, the supply voltage range of 3V to 5.5V means the THVD1450DGKR operates directly on a 3.3V rail without additional level shifting. The logic inputs and outputs are referenced to the supply, so a 3.3V supply gives 3.3V logic levels.

What is the closest pin-compatible alternative to THVD1450DGKR?

Within the same base product family, the THVD1450 series includes several speed and duplex variants. The THVD1450DGKR is the half-duplex 50 Mbps option in the 8-VSSOP package. For a full-duplex or different speed grade, check the THVD145x family datasheet for pin-compatible siblings — the base product number THVD1450 shares the same footprint across the series.