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SN65HVD1781AQDRQ1 The Texas Instruments SN65HVD1781AQDRQ1 is an automotive-qualified, fault-protected RS-485 transceiver. It operates with a 3.3-V to 5-V supply range and supports signaling rates up to 1 Mbps.
Mfr Part #:

SN65HVD1781AQDRQ1

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN65HVD1781AQDRQ1 is an automotive-qualified, fault-protected RS-485 transceiver. It operates with a 3.3-V to 5-V supply range and supports signaling rates up to 1 Mbps.
✓ Total Stock: 8,684 pcs
$ Price Range: $2.81

SN65HVD1781AQDRQ1 Available from 3 distributors

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Rayichip ✓
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5,103 pcs
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5103 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
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3,421 pcs
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3421 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
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160 pcs
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160 pcs On Request 1 On Request On Request On Request On Request On Request
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SN65HVD1781AQDRQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Rate
Duplex
Fault Protection
Mounting Type
Number of Drivers
Operating Temperature
Protocol
Quiescent Current
Receiver Hysteresis
Supplier Device Package
Supply Current
Type
Voltage
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SN65HVD1781AQDRQ1 Description

Short technical summary and product information.

The SN65HVD1781AQDRQ1 from Texas Instruments is an automotive-grade, fault-protected RS-485 transceiver designed for robust communication in harsh environments. This device supports half-duplex communication with a signaling rate of up to 1 Mbps.

 

Key electrical characteristics include a wide supply voltage range of 3.15 V to 5.5 V and a broad common-mode range of -7 V to 12 V. It features significant fault protection, with bus-pin fault protection rated up to ±70 V and ±16 kV HBM protection on bus pins. The transceiver is designed to support up to 320 nodes on a bus and includes failsafe receiver functionality for open-circuit, short-circuit, and idle-bus conditions.

 

This transceiver is qualified for automotive applications under AEC-Q100, with an operating temperature range of -40°C to 125°C. It is supplied in a compact 8-pin SOIC package suitable for surface mounting. The device also offers low power consumption, with a standby supply current of 1 µA maximum and a quiescent current of 4 mA during operation.

SN65HVD1781AQDRQ1 Quick Information

Product Type: RS-485 Transceiver
Canonical Name: SN65HVD1781AQDRQ1 Automotive Fault-Protected RS-485 Transceiver
Subcategory: RS-485 & RS-422 Transceivers

SN65HVD1781AQDRQ1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN65HVD1781AQDRQ1 Estimated Pricing

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1+ $2.81 $2.81

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN65HVD1781AQDRQ1 Features

  • Automotive fault-protected RS-485 transceiver.
  • Supports signaling rates up to 1 Mbps.
  • Wide supply voltage from 3.15V to 5.5V.
  • Bus-pin fault protection up to ±70 V.
  • Qualified for automotive applications (AEC-Q100).

SN65HVD1781AQDRQ1 Applications

  • Ideal for automotive communication systems.
  • Suitable for industrial control networks.
  • Robust serial data transmission.
  • Fault-tolerant bus applications.

SN65HVD1781AQDRQ1 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the SN65HVD1781AQDRQ1?

The operating temperature range is -40°C to 125°C.

What supply voltage does the SN65HVD1781AQDRQ1 support?

It supports a supply voltage range from 3.15V to 5.5V.

What is the maximum signaling rate of this transceiver?

The maximum signaling rate is 1 Mbps.

What type of package is the SN65HVD1781AQDRQ1 supplied in?

It is supplied in an 8-SOIC package.

Does the SN65HVD1781AQDRQ1 have fault protection?

Yes, it features bus-pin fault protection up to ±70 V.

Is this transceiver qualified for automotive applications?

Yes, it is qualified for automotive applications under AEC-Q100.

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