Product details

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (Nom) (V) 3.3, 5 Signaling rate (Max) (Mbps) 0.115 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -70 to 70 Common mode range -7 to 12 Number of nodes 320 Features Fault protection Isolated No ICC (Max) (mA) 6 Rating Catalog Operating temperature range (C) -40 to 105
Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (Nom) (V) 3.3, 5 Signaling rate (Max) (Mbps) 0.115 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -70 to 70 Common mode range -7 to 12 Number of nodes 320 Features Fault protection Isolated No ICC (Max) (mA) 6 Rating Catalog Operating temperature range (C) -40 to 105
PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9
  • Bus-Pin Fault Protection to:
    • > ±70 V (SN65HVD1780, SN65HVD1781)
    • > ±30 V (SN65HVD1782)
  • Operation With 3.3-V to 5-V Supply Range
  • ±16-kV HBM Protection on Bus Pins
  • Reduced Unit Load for Up to 320 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions
  • Low Power Consumption
    • Low Standby Supply Current, 1 µA Maximum
    • ICC 4-mA Quiescent Current During Operation
  • Pin-Compatible With Industry-Standard SN75176
  • Signaling Rates of 115 kbps, 1 Mbps, and up to 10 Mbps
  • Create a Custom Design using the SN65HVD178x with the WEBENCH® Power Designer
  • Bus-Pin Fault Protection to:
    • > ±70 V (SN65HVD1780, SN65HVD1781)
    • > ±30 V (SN65HVD1782)
  • Operation With 3.3-V to 5-V Supply Range
  • ±16-kV HBM Protection on Bus Pins
  • Reduced Unit Load for Up to 320 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions
  • Low Power Consumption
    • Low Standby Supply Current, 1 µA Maximum
    • ICC 4-mA Quiescent Current During Operation
  • Pin-Compatible With Industry-Standard SN75176
  • Signaling Rates of 115 kbps, 1 Mbps, and up to 10 Mbps
  • Create a Custom Design using the SN65HVD178x with the WEBENCH® Power Designer

The SN65HVD178x devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. The devices are also robust to ESD events with high levels of protection to the human-body-model specification.

The SN65HVD178x devices combine a differential driver and a differential receiver, which operate from a single power supply. In the SN65HVD1782, the driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. This port features a wide common-mode voltage range, making the devices suitable for multipoint applications over long cable runs. These devices are characterized from –40°C to 125°C. These devices are pin-compatible with the industry-standard SN75176 transceiver, making them drop-in upgrades in most systems.

These devices are fully compliant with ANSI TIA/EIA 485-A with a 5-V supply and can operate with a 3.3-V supply with reduced driver output voltage for low-power applications. For applications where operation is required over an extended common-mode voltage range, see the SN65HVD1785 (SLLS872) data sheet.

The SN65HVD178x devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. The devices are also robust to ESD events with high levels of protection to the human-body-model specification.

The SN65HVD178x devices combine a differential driver and a differential receiver, which operate from a single power supply. In the SN65HVD1782, the driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. This port features a wide common-mode voltage range, making the devices suitable for multipoint applications over long cable runs. These devices are characterized from –40°C to 125°C. These devices are pin-compatible with the industry-standard SN75176 transceiver, making them drop-in upgrades in most systems.

These devices are fully compliant with ANSI TIA/EIA 485-A with a 5-V supply and can operate with a 3.3-V supply with reduced driver output voltage for low-power applications. For applications where operation is required over an extended common-mode voltage range, see the SN65HVD1785 (SLLS872) data sheet.

Download

Similar products you might be interested in

open-in-new Compare products
Pin-for-pin with same functionality to the compared device.
THVD2410 ACTIVE ±70-V fault-protected 3.3-V to 5-V RS-485 transceiver with IEC ESD Pin-to-pin device that offers integrated ±70-V fault-protection, IEC ESD protection (12-kV contact discharge), IEC EFT (4-kV noise immunity), and extended commo

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet SN65HVD178x Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation datasheet (Rev. H) 10 Mar 2017
User guide RS-485 Half-Duplex EVM User's Guide (Rev. C) 01 Sep 2021
Functional safety information SN65HVD178x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 01 Mar 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

RS485-HF-DPLX-EVM — RS-485 half-duplex evaluation module

The RS-485 half-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data-transmission systems using any of the SN65HVD1x, SN65HVD2x, SN65HVD7x, SN65HVD8x and SN65HVD96 half-duplex transceivers. The EVM board comes without the RS-485 (...)
In stock
Limit: 5
Simulation model

SN65HVD1780 IBIS 5V Model (Rev. A)

SLLC349A.ZIP (27 KB) - IBIS Model
Simulation model

SN65HVD1780 IBIS 3.3V Model (Rev. A)

SLLC350A.ZIP (29 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos