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SN65HVD51DR

SN65HVD51DR RS-485/RS-422 Transceiver, 5 Mbps, Full Duplex

MPNSN65HVD51DR
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Texas Instruments SN65HVD51DR, RS-422/RS-485 Full-Duplex Transceiver, 5 Mbps, 4.5-5.5 V, 8-SOIC, -40 to 85°C.

$2.2005Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD51DR specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate5Mbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

It handles one driver and one receiver (1/1), supporting point-to-point or multi-drop bus architectures at data rates up to 5 Mbps.

Full-duplex operation means separate twisted pairs for transmit and receive, so the bus never has to turn around — no dead time between send and reply. That matters for closed-loop control loops where deterministic latency is required. The 50 mV hysteresis helps reject ground-shift noise on longer cables; if your run exceeds 400 m at this speed, you will need to drop the data rate or add repeaters.

For volume pricing and current lead time, submit an RFQ through this listing.

Frequently asked questions

Does SN65HVD51DR work with 3.3V logic?

It is a 5 V device and does not have a 3.3 V logic interface. For 3.3 V RS-485 transceivers, look at the SN65HVD3x family or the SN65HVD72.