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SN65HVD1780DRG4

SN65HVD1780DRG4 RS-485/RS-422 Transceiver, 115 kbps, 8-SOIC

MPNSN65HVD1780DRG4
End of Life

Texas Instruments SN65HVD1780DRG4, RS-422/RS-485 transceiver, half-duplex, 115 kbps, 3.15 V to 5.5 V supply, 8-SOIC package, -40°C to 125°C operating temperature.

$6.7500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD1780DRG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3.15V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~125°C
DuplexHalf
PackageTape & Reel (TR); Cut Tape (CT)
Data rate115Kbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

What this RS-485 transceiver brings to the bus

It signals at up to 115 kbps, which covers the common industrial fieldbus rates — Modbus RTU at 9600 or 19200 baud, BACnet MS/TP at 76800 baud, and similar multi-drop links where the total cable run can reach 1200 m. The wide supply range from 3.15 V to 5.5 V lets it sit on a 3.3 V microcontroller UART without a separate level translator, or plug straight into a legacy 5 V backplane. Receiver hysteresis is 50 mV, which helps reject noise on long stub connections.

No external level shifter, no separate transceiver supply — just one part number across both voltage domains. The 50 mV receiver hysteresis is a practical bonus: it cleans up slow edges on long cables without adding external Schmitt triggers.

Package and temperature grade — rework and environment

Surface-mount only; no through-hole option on this suffix.

That means no end-of-life notice pending, no last-time-buy deadline to manage.

Frequently asked questions

Is SN65HVD1780DRG4 compatible with 3.3V systems?

Yes. The logic-level thresholds are compatible with 3.3 V CMOS UARTs without a level shifter.

What is the difference between SN65HVD1780DRG4 and SN65HVD1780D?

The DRG4 suffix indicates Tape & Reel packaging, while the D suffix typically ships in tubes. Electrically they are identical.