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Texas Instruments SN65HVD485EDGKG4 — Interface & Transceivers

TI SN65HVD485EDGKG4 RS-485/422 Transceiver, 10 Mbps, 8-VSSOP

MPNSN65HVD485EDGKG4
End of Life

Texas Instruments SN65HVD485EDGKG4, Half-duplex RS-422/RS485 Transceiver, 10 Mbps data rate, 4.5 V to 5.5 V supply, 1 driver/1 receiver, 30 mV receiver hysteresis, -40°C to 85°C, 8-VSSOP package, Tube.

$3.0800Ref. price · indicative, final on quote
Texas Instruments SN65HVD485EDGKG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD485EDGKG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexHalf
PackageTube
Data rate10Mbps
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Receiver hysteresis30 mV
Number of drivers (Receivers)1/1

Product details

RS-485 transceiver for 5 V industrial buses

If your UART or controller is 3.3 V only, the logic inputs may not reliably see a high level from a 3.3 V output — the VIH threshold on the driver inputs is typically 2.0 V, but the receiver outputs swing rail-to-rail, so a 3.3 V MCU reading the RO pin needs a level shifter or a 5 V-tolerant input. For pure 5 V systems the interface is direct.

10 Mbps — cable length and signal integrity budget

At 10 Mbps the rise time is fast enough that stub length and termination matter. For a 10 Mbps link, keep the stub from the transceiver to the bus connector under 30 cm and place a 120 Ω termination resistor at each end of the cable. The 30 mV receiver hysteresis gives about 600 mV of noise margin on a 5 V differential bus, which handles typical ground shifts in industrial environments. If your cable run exceeds 100 m at this data rate, expect to drop to a lower baud rate — the RS-485 standard trades speed for distance.

TI lists the SN65HVD485EDGKG4 as Active.

Frequently asked questions

Is SN65HVD485EDGKG4 available in tape and reel or tube?

The SN65HVD485EDGKG4 ships in Tube. For tape-and-reel, order the SN65HVD485EDGKR — same die, same 8-VSSOP footprint, same electrical specs, just different packaging format.

Is SN65HVD485EDGKG4 RoHS compliant?

The DGK4 suffix indicates a green/RoHS-compliant finish per TI's standard lead-free plating. The part is free of restricted substances under the current EU RoHS directive.

Can SN65HVD485EDGKG4 be used as a replacement for SN65HVD485ED?

Yes — the SN65HVD485EDGKG4 is the 8-VSSOP package variant of the base SN65HVD485ED design. The only difference is the package: the -ED suffix typically ships in an 8-SOIC, while the -EDGKG4 is the smaller 8-VSSOP. Verify the footprint matches your PCB layout before substituting.

How many drivers and receivers does SN65HVD485EDGKG4 have?

One driver and one receiver (1/1). This is a single-channel half-duplex transceiver.

Is SN65HVD485EDGKG4 compatible with 3.3V logic?

The receiver output (RO) swings from GND to VCC, so a 3.3 V MCU input may see a 5 V logic-high — check the MCU's 5 V tolerance. The driver inputs (DI, DE, RE) have TTL-compatible thresholds (VIH ~2.0 V), so a 3.3 V logic-high is sufficient to drive them. A level shifter on RO is recommended for 3.3 V-only controllers.

What is the difference between SN65HVD485EDGKG4 and SN65HVD485EDGKR?

The -DGKG4 suffix indicates Tube packaging; the -DGKR suffix indicates tape-and-reel packaging. The die, electrical specs, and 8-VSSOP package are identical. Choose the format that matches your pick-and-place feeder or volume requirements.