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Home > Products > Integrated Circuits (ICs) > Interface > Drivers, Receivers, Transceivers

Texas Instruments SN65HVD12DR

Name: SN65HVD12DR
Brand: Texas Instruments
SKU: SN65HVD12DR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN65HVD12DR

Manufacturer:: Texas Instruments

Category:: Drivers, Receivers, Transceivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: SN65HVD12DR.pdf

Description:: IC TRANSCEIVER HALF 1/1 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:2,394

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Product details

Overview

SN65HVD12DR from Texas Instruments is an RS-485 and RS-422 differential bus transceiver designed for industrial communication, multipoint data networks, building automation, and embedded serial-interface applications. The device integrates a differential driver and receiver to provide reliable balanced data transmission over twisted-pair cabling in electrically noisy environments.

As part of the Texas Instruments industrial interface portfolio, SN65HVD12DR combines robust bus communication, low-power operation, wide common-mode capability, and compact package integration for industrial and embedded systems. For engineers reviewing the SN65HVD12DR datasheet, SN65HVD12DR pinout, SN65HVD12DR application, or SN65HVD12DR equivalent, this device is widely used in factory automation, motor-control networks, industrial instrumentation, building control systems, and long-distance serial communication platforms.

Technical Context

In industrial communication systems, SN65HVD12DR operates as a physical-layer interface between a microcontroller UART and an RS-485 or RS-422 differential bus. The transceiver converts single-ended logic-level signals into balanced differential signals for improved noise immunity and longer cable reach.

The device supports half-duplex differential communication and is suitable for multidrop bus networks where several nodes share the same communication pair. Its robust receiver threshold and bus-driver architecture help maintain communication stability in industrial environments with ground shifts, EMI, and cable-induced noise.

SN65HVD12DR is commonly used in PLC modules, industrial sensors, motor drives, HVAC systems, smart meters, instrumentation networks, and embedded control systems requiring reliable serial communication.

Key Specifications

Parameter	Value and Actual Design Meaning
Interface Type	RS-485 and RS-422 transceiver supporting balanced differential serial communication.
Communication Mode	Half-duplex bus architecture suitable for multidrop industrial networks.
Driver and Receiver	Integrated differential driver and receiver reduce external interface component requirements.
Data Transmission	Supports robust data communication over twisted-pair cabling in noisy environments.
Bus Common-Mode Support	Improves tolerance to ground potential differences across industrial networks.
Low-Power Operation	Supports embedded communication systems with efficient power consumption.
SOIC Package	Compact surface-mount package supporting industrial PCB integration.

Pinout & Package

The SN65HVD12DR pinout is optimized for RS-485/RS-422 interface PCB layouts and includes logic-side driver and receiver pins, bus-side differential connections, enable controls, power supply, and grounding pins.

For PCB implementation, differential A/B bus traces should be routed as a controlled pair where possible, with proper termination, ESD protection, low-impedance grounding, and connector-side protection to maintain communication reliability in industrial environments.

Pin / Function	PCB Design and Circuit Role
RO	Receiver output providing logic-level data to the host controller.
DI	Driver input receiving UART or logic-level transmit data from the host controller.
DE	Driver-enable input controlling RS-485 bus transmit operation.
RE	Receiver-enable input controlling receive-path operation.
A / B	Differential bus connections supporting RS-485/RS-422 twisted-pair communication.
VCC / GND	Power-supply and ground connections supporting stable transceiver operation.

Key Features

RS-485 and RS-422 differential transceiver architecture for industrial communication.
Integrated driver and receiver simplify embedded serial-interface design.
Half-duplex operation supports multidrop bus networks.
Balanced differential signaling improves noise immunity and cable communication stability.
Low-power operation suitable for embedded industrial applications.
SOIC package supports reliable surface-mount PCB assembly.

Applications

Industrial Automation Networks

Motor Control & Drive Systems

Use Scenario: PLC modules, factory automation nodes, and industrial communication networks.

IC Role: SN65HVD12DR converts logic-level serial data into RS-485 differential bus signals.

Use Value: Improves communication reliability in noisy industrial environments.

Use Scenario: Motor drives, servo controllers, and distributed motion-control systems.

IC Role: Provides robust serial communication between controllers and drive nodes.

Use Value: Supports stable command and feedback communication over long cable runs.

Building Automation & Smart Metering

Instrumentation & Embedded Control

Use Scenario: HVAC controllers, building-management systems, and smart energy meters.

IC Role: Enables RS-485 communication across distributed control nodes.

Use Value: Supports reliable multipoint communication in facility automation systems.

Use Scenario: Industrial instruments, remote sensors, and embedded control platforms.

IC Role: Interfaces local controllers with differential serial communication buses.

Use Value: Enhances noise immunity and long-distance communication robustness.

Equivalent & Alternatives

When evaluating SN65HVD12DR equivalent devices, engineers should compare RS-485 compliance, data-rate requirements, bus fault tolerance, common-mode range, power consumption, and package compatibility.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX485ESA	Maxim RS-485 transceiver with different power, speed, and protection characteristics.	Used in industrial serial networks and embedded communication systems.	Choose SN65HVD12DR for Texas Instruments industrial interface ecosystem compatibility.
SN75176BDR	Texas Instruments RS-485 transceiver with older-generation interface characteristics.	Commonly used in legacy RS-485 industrial communication designs.	Choose SN65HVD12DR for improved modern industrial RS-485 communication performance.

Compared with MAX485ESA, SN65HVD12DR is optimized for robust industrial RS-485/RS-422 communication and TI interface-system compatibility. SN65HVD12DR vs SN75176BDR selection depends on system generation, bus robustness requirements, power constraints, and embedded communication architecture.

Quality

SN65HVD12DR should be sourced as original Texas Instruments components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, solderability testing, bus-communication verification, electrical characterization, and incoming inspection according to industrial communication production requirements.

Because the device operates on external communication buses, proper ESD handling, controlled PCB assembly, connector-side protection, stable grounding, and verified bus termination help maintain long-term communication reliability. Traceable sourcing supports industrial manufacturing quality and reduces counterfeit supply-chain risk.

Availability

SN65HVD12DR available at Aetrix Electronics and suitable for industrial automation, RS-485 communication, embedded control, building automation, and instrumentation platforms requiring stable component supply and repeatable production support.

Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and long-term availability support for OEM manufacturers, industrial automation developers, communication-equipment builders, and electronics production programs.

For production deployment, confirming package type, interface requirements, data-rate targets, temperature requirements, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.

Manufacturer

Texas Instruments is a semiconductor manufacturer specializing in analog ICs, embedded processors, interface devices, power-management components, signal-chain technologies, and industrial semiconductor solutions for communication, industrial, automotive, and consumer applications.

The Texas Instruments industrial interface portfolio focuses on robust communication, noise immunity, long-distance signaling, ESD protection, and reliable embedded connectivity for RS-485, RS-422, CAN, Ethernet, and other industrial communication architectures.

FAQ

What is SN65HVD12DR used for?

SN65HVD12DR is used for RS-485 and RS-422 industrial communication, factory automation networks, motor-control systems, building automation, smart metering, and embedded serial interfaces.

Where can I find the SN65HVD12DR datasheet download?

The SN65HVD12DR datasheet is available from Texas Instruments and includes electrical specifications, interface timing, bus characteristics, package information, and PCB integration guidance.

What should be considered in SN65HVD12DR PCB design?

PCB implementation should prioritize differential A/B routing, proper termination, ESD protection, low-impedance grounding, and connector-side protection for reliable RS-485 communication.

Does SN65HVD12DR support RS-485 communication?

Yes. SN65HVD12DR is designed for RS-485 and RS-422 differential bus communication applications.

What are common SN65HVD12DR equivalent solutions?

Common equivalent alternatives include MAX485ESA and SN75176BDR depending on data-rate requirements, bus robustness, package constraints, and industrial communication-system design objectives.

SN65HVD12DR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Transceiver

Protocol:: RS422, RS485

Number of Drivers/Receivers:: 1/1

Duplex:: Half

Receiver Hysteresis:: 35 mV

Data Rate:: 1Mbps

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

SN65HVD12DR FAQ

1.How can I place an order for SN65HVD12DR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN65HVD12DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN65HVD12DR reliable?

The price and inventory of SN65HVD12DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65HVD12DR is usually 5 days.

3.What payment methods are accepted for SN65HVD12DR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65HVD12DR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN65HVD12DR?

SN65HVD12DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN65HVD12DR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN65HVD12DR?

For technical support, including SN65HVD12DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65HVD12DR requirements.

6.How does Aetrix verify that SN65HVD12DR is sourced from the original manufacturer or authorized distributors?

All SN65HVD12DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN65HVD12DR meets industry standards.

7.What is the process for return or replacement of SN65HVD12DR?

All SN65HVD12DR units undergo pre-shipment inspection (PSI). If there is an issue with SN65HVD12DR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN65HVD12DR part is unused and in its original packaging.

Return procedure for SN65HVD12DR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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