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SN65HVD888DR

Texas Instruments SN65HVD888DR RS-485/RS-422 Transceiver

MPNSN65HVD888DR
Active

Texas Instruments SN65HVD888DR, Half-Duplex RS-422/RS-485 Transceiver, 1/1 Driver/Receiver, 250 kbps, 4.5V–5.5V Supply, 60 mV Hysteresis, -40°C to 85°C, 8-SOIC Package.

$2.5300Ref. price · indicative, final on quote
Texas Instruments SN65HVD888DR datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD888DR specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexHalf
PackageTape & Reel (TR); Cut Tape (CT)
Data rate250kbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis60 mV
Number of drivers (Receivers)1/1

Product details

Industrial RS-485 bus transceiver in 8-SOIC

At 250 kbps the SN65HVD888DR is slew-rate limited, which keeps radiated emissions low on unshielded twisted-pair cable and allows longer stub lengths than a full-speed RS-485 part. This is the right tier for Modbus RTU, BACnet MS/TP, and similar fieldbus protocols that top out at 115.2 kbps or 250 kbps. If your design requires 1 Mbps or higher (e.g., Profibus), you would step up to a different transceiver in the 65HVD family.

Receiver hysteresis — noise budget on the cable

The 60 mV of receiver hysteresis sets the input switching threshold deadband, preventing the output from chattering when the differential bus voltage sits near the threshold. On a typical RS-485 bus with termination resistors and common-mode noise from motor drives, this margin buys you reliable data without external biasing resistors or a separate fail-safe circuit. The hysteresis value is fixed — no external adjustment — so the board layout just needs the standard 120 Ω termination at each end of the stub.

This part is not AEC-Q100 qualified; for automotive-rated RS-485, look at the SN65HVD88x-Q1 variants.

No PCN watch is needed for this part today, but as with any active semiconductor, the BOM should include a qualified second source if the design is long-life.

Frequently asked questions

What is the difference between SN65HVD888DR and SN65HVD888D?

The SN65HVD888DR and SN65HVD888D are electrically identical — same half-duplex RS-485/RS-422 transceiver, same 250 kbps data rate, same 60 mV hysteresis, same 8-SOIC package. The only difference is the shipping medium: the 'DR' suffix indicates Tape & Reel packaging, while the 'D' suffix typically ships in tubes. For a pick-and-place production line, the DR (reel) version is the standard choice; for hand-assembly or low-volume prototypes, the D (tube) version may be more convenient.

Is SN65HVD888DR a direct replacement for SN65HVD888?

Yes. The SN65HVD888DR is the Tape & Reel packaging variant of the base SN65HVD888 part. The die, electrical specifications, and 8-SOIC footprint are identical. If your BOM calls for the SN65HVD888 (tube) but you have reel feeders, the DR suffix is a drop-in substitute — just verify the reel quantity matches your line setup.

Is SN65HVD888DR lead-free and RoHS compliant?

Yes, the SN65HVD888DR is ROHS3 compliant, meaning it meets the EU RoHS directive without any exempted substances. It is lead-free and suitable for lead-free reflow soldering profiles.