SN65HVD1781D

Name: SN65HVD1781D
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

RS-485 Interface IC 70V Fault-Protected RS-485 Xceivers

7,867 Effective Inventory

SN65HVD1781D

Effective Inventory7,867

RS-485 Interface IC 70V Fault-Protected RS-485 Xceivers

Manufacturer Part # : SN65HVD1781D
Package/Case: SOIC-8
Part Status : ACTIVE
Brand: Texas Instruments
Product Categories : Drivers, Receivers, Transceivers
Series : 65HVD1781

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Initiate the application within 90 days from the shipment date.

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SN65HVD1781D DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.300	$1.30
10	$1.270	$12.70
30	$1.250	$37.50
100	$1.230	$123.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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SN65HVD1781D Details

The SN65HVD1781D is a robust RS-485 transceiver from Texas Instruments, designed for reliable data transmission in noisy environments. This device is ideal for industrial communication applications, featuring high ESD protection, low power consumption, and a wide operating temperature range. It is housed in an SOIC-8 package, making it suitable for compact circuit designs.

Pinout

1 (A): Non-inverting Receiver Input/Driver Output
2 (B): Inverting Receiver Input/Driver Output
3 (GND): Ground
4 (VCC): Positive Power Supply
5 (DI): Driver Input
6 (DE): Driver Output Enable
7 (RE): Receiver Output Enable
8 (RO): Receiver Output

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Bus-Pin Fault Protection up to 70 V: Provides robust protection against bus-pin faults.
Operation with 3.3-V to 5-V Supply Range: Designed for operation over a wide supply voltage range.
16-kV HBM Protection on Bus Pins: Offers high ESD protection for reliable data transmission.
Low Power Consumption: Consumes low power to minimize heat generation and prolong device lifespan.

Applications

The SN65HVD1781D is suitable for various industrial communication applications, including:

Semiconductor manufacturing equipment control systems
Automotive electronics and infotainment systems
Industrial automation and process control systems
Data acquisition and logging systems

Where to Use

The SN65HVD1781D can be used in various environments, including:

Industrial settings with high EMI and RFI levels
Automotive applications with harsh environmental conditions
Outdoor installations exposed to weather and temperature fluctuations

How to Use

To use the SN65HVD1781D, connect it to your RS-485 communication bus by wiring the A and B pins to the respective bus lines. Ensure proper power supply connections to VCC and GND. Use the DI, DE, RE, and RO pins to control and monitor data transmission. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the SN65HVD1781D illustrates how to connect the transceiver to an RS-485 bus. It includes connections for power supply, ground, and communication bus lines, ensuring proper operation and reliable data transmission.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

SN65HVD75: A similar RS-485 transceiver from Texas Instruments offering comparable features and performance.
ADM4851: An alternative RS-485 transceiver from Analog Devices with equivalent functionality.

Complementary

The SN65HVD1781D can be complemented by the SN65HVD75, which offers additional features such as higher data rates and enhanced ESD protection, suitable for more demanding communication applications.

When selecting complementary transceivers, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum data rate supported by the SN65HVD1781D?

A: The SN65HVD1781D supports data rates up to 32 Mbps. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the SN65HVD1781D be used in automotive communication systems?

A: Yes, the SN65HVD1781D is suitable for automotive communication systems, offering high ESD protection and reliable data transmission in demanding environments.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of receivers	1	Number of transmitters	1
Duplex	Half	Supply voltage (nom) (V)	3.3, 5
Signaling rate (max) (MBits)	1	Fault protection (V)	-70 to 70
Common-mode range (V)	-7 to 12	Number of nodes	320
Features	Fault protection	Isolated	No
Supply current (max) (µA)	6000	Rating	Catalog
Operating temperature range (°C)	-40 to 105, -40 to 125

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification SN65HVD1781D PDF Download

FAQs

What is SN65HVD1781D?

The SN65HVD1781D is a low-power, half-duplex RS-485 transceiver designed by Texas Instruments. It is ideal for applications requiring robust communication over long cable lengths in industrial automation, building automation, and automotive systems.

How Does SN65HVD1781D Work?

The SN65HVD1781D works by converting data signals between a differential driver and receiver to enable communication over an RS-485 network. It features high electromagnetic compatibility (EMC) and low electromagnetic interference (EMI) characteristics, making it suitable for harsh industrial environments.

How Many Pins does SN65HVD1781D have and What are the Functions of the Pinout Configuration?

The SN65HVD1781D is housed in an 8-lead SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

DE, /RE: Driver enable and receiver enable pins for half-duplex operation.
A, B: Differential communication pins for RS-485 signals.
VCC: Positive power supply pin.
GND: Ground pin.
Y, Z: Driver output and receiver input pins.
RO: Receiver output pin.

What are the Pros and Cons of SN65HVD1781D?

Pros:

Robust Communication: Designed for reliable data transmission over long distances in harsh environments.
Low Power Consumption: Operates with low power consumption, suitable for battery-powered applications.
Half-Duplex Operation: Supports half-duplex communication for simplifying network topology.
Wide Supply Voltage Range: Operates over a wide supply voltage range for flexibility in system design.
ESD Protection: Includes built-in electrostatic discharge (ESD) protection for enhanced reliability.

Cons:

Driver/Receiver Enable Pins: Requires careful control of DE and /RE pins for proper half-duplex operation.
Sensitive to Noise: May require additional filtering or shielding in noise-sensitive environments.
Clock Source: Requires an external clock source for synchronization in some applications.

Are There Any Equivalents/Alternatives to SN65HVD1781D for Recommendation?

Alternatives to the SN65HVD1781D include the MAX3485 from Maxim Integrated and the LTC1480 from Analog Devices, both of which are popular RS-485 transceiver options.
The SN65HVD1782D is a similar device from Texas Instruments with enhanced features for specific application requirements.