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SN65HVD1781QDRQ1 The Texas Instruments SN65HVD1781QDRQ1 is a fault-protected RS-485/RS-422 transceiver. It operates with a 3.3V to 5V supply and supports half-duplex communication.
Mfr Part #:

SN65HVD1781QDRQ1

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN65HVD1781QDRQ1 is a fault-protected RS-485/RS-422 transceiver. It operates with a 3.3V to 5V supply and supports half-duplex communication.
✓ Total Stock: 3,917 pcs
$ Price Range: $2.59

SN65HVD1781QDRQ1 Available from 3 distributors

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Braun Electronic Components ✓
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2,693 pcs
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2693 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
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1,124 pcs
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1124 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
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100 pcs
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100 pcs On Request 1 On Request On Request 21+ On Request On Request
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SN65HVD1781QDRQ1 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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SN65HVD1781QDRQ1 Description

Short technical summary and product information.

The SN65HVD1781QDRQ1 from Texas Instruments is a half-duplex transceiver designed for RS-485 and RS-422 communication.

 

This device features robust fault protection, capable of withstanding voltages from -70V to 70V on its bus pins. It operates over a wide supply voltage range of 3.15V to 5.5V and supports data rates up to 1Mbps. The transceiver is designed for automotive applications, indicated by its AEC-Q100 qualification and an operating temperature range of -40°C to 125°C.

 

Key electrical characteristics include a common-mode range of -7V to 12V and reduced unit load for up to 320 nodes. It also offers failsafe receiver behavior for open-circuit, short-circuit, and idle-bus conditions. The device is pin-compatible with the industry-standard SN75176.

 

Packaged in an 8-pin SOIC surface-mount package, the SN65HVD1781QDRQ1 is suitable for various automotive data link applications.

SN65HVD1781QDRQ1 Quick Information

Product Type: Transceiver
Canonical Name: SN65HVD1781QDRQ1 RS-485/RS-422 Transceiver
Subcategory: RS-485/RS-422 Transceiver

SN65HVD1781QDRQ1 Compliance

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

SN65HVD1781QDRQ1 Estimated Pricing

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1+ $2.59 $2.59

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

SN65HVD1781QDRQ1 Features

  • Half-duplex RS-485/RS-422 transceiver.
  • Operates from 3.3V to 5V supply.
  • Supports data rates up to 1Mbps.
  • Features ±70V bus-pin fault protection.
  • Qualified for automotive applications.

SN65HVD1781QDRQ1 Applications

  • Suitable for automotive RS-485 communication systems.
  • Used in industrial data acquisition networks.
  • Ideal for half-duplex serial communication applications.
  • Applicable in building automation and control systems.
  • Designed for high-reliability automotive data links.

SN65HVD1781QDRQ1 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the SN65HVD1781QDRQ1?

The SN65HVD1781QDRQ1 operates with a supply voltage range of 3.15V to 5.5V.

What is the operating temperature range for this transceiver?

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

What is the maximum signaling rate supported by the SN65HVD1781QDRQ1?

The maximum signaling rate supported is 10 Mbps.

What fault protection is provided on the bus pins?

The bus pins provide fault protection from -70V to 70V.

What package type is the SN65HVD1781QDRQ1 supplied in?

It is supplied in an 8-SOIC package.

SN65HVD1781QDRQ1 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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SN65HVD1781DR
SN65HVD1781DR
Texas Instruments
The SN65HVD1781DR from Texas Instruments is a fault-protected RS-485 transceiver designed for robust communication. It features a half-duplex configuration and operates over a wide temperature range.
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