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Product details

Parameters

Number of transmitters 1 Number of receivers 1 Duplex Half Supply voltage (Nom) (V) 3.3 Signaling rate (Max) (Mbps) 20 IEC 61000-4-2 contact (+/- kV) 12 Isolated No Fault protection (V) -13 to 16.5 Number of nodes 200 Common mode range -7 to 12 ICC (Max) (mA) 0.95 Features IEC ESD protection Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other RS-485 & RS-422 transceivers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSON (DRB) 8 9 mm² 3 x 3 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other RS-485 & RS-422 transceivers

Features

  • Small-size VSSOP Packages Save Board Space, or SOIC for Drop-in Compatibility
  • Bus I/O Protection
    • >±15 kV HBM Protection
    • >±12 kV IEC 61000-4-2 Contact Discharge
    • >±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Industrial Temperature Range
    –40°C to 125°C
  • Large Receiver Hysteresis (80 mV) for Noise Rejection
  • Low Unit-Loading Allows Over 200 Connected Nodes
  • Low Power Consumption
    • Low Standby Supply Current: < 2 µA
    • ICC < 1 mA Quiescent During Operation
  • 5-V Tolerant Logic Inputs Compatible With
    3.3-V or 5-V Controllers
  • Signaling Rate Options Optimized for:
    250 kbps, 20 Mbps, 50 Mbps
  • Glitch Free Power-Up and Power-Down Bus Inputs and Outputs

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open-in-new Find other RS-485 & RS-422 transceivers

Description

These devices have robust 3.3-V drivers and receivers in a small package for demanding industrial applications. The bus pins are robust to ESD events with high levels of protection to Human-Body Model and IEC Contact Discharge specifications.

Each of these devices combines a differential driver and a differential receiver which operate from a single 3.3-V power supply. 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. These devices feature a wide common-mode voltage range making the devices suitable for multi-point applications over long cable runs. These devices are characterized from –40°C to 125°C.

open-in-new Find other RS-485 & RS-422 transceivers
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet SN65HVD7x 3.3-V Supply RS-485 With IEC ESD protection datasheet (Rev. H) Mar. 11, 2019
Technical articles Get Connected: How to operate your RS-485 links without termination May 19, 2016
Technical articles New reference designs available based on the new MSP430FR4133 MCU Oct. 16, 2014
User guide RS-485 Half-Duplex EVM User's Guide (Rev. B) Jun. 12, 2013
User guide SN65HVD7x EVM User's Guide Mar. 09, 2012

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The RS-485 full-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data transmission systems using any of the SN65HVD147x, SN65HVD179x, SN65HVD3x, SN65HVD5x and SN65HVD7x full-duplex transceivers in a 14-pin D package.  The EVM (...)

Features
  • Enables evaluation of RS-485 full-duplex transceivers in standard 14-pin SOIC (D) package
  • Allows evaluation of performance over common-mode voltage
  • Flexible design for convenient evaluation of all standard RS-485 test circuits
  • 50-Ω termination on I/O pins for use with standard 50-Ω test equipment
  • Connect (...)
EVALUATION BOARD Download
49
Description
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 (...)
Features

The EVM lets you quickly, easily and accurately evaluate TI's family of RS-485 products.

Hardware:
  • RS-485 half-duplex EVM PWB
  • Screw-type SMA jacks and Bergstik headers serve as the I/O connections
  • Banana jacks serve as the DC power input terminals
EVALUATION BOARD Download
49
Description

The SN65HVD72EVM evaluation module (EVM) helps you evaluate device performance, supporting fast development and analysis of data transmission systems using the SN65HVD72, SN65HVD75 and SN65HVD78 transceivers. The EVM board comes with the SN65HVD75 (20 Mbps) device soldered to the board (...)

Features
  • The EVM lets you quickly, easily and accurately evaluate our SN65HVD7x family of RS-485 products
  • Hardware:
    • SN65HVD7X EVM PWB
  • Screw-type SMA jacks and Bergstik headers serve as the I/O connections
  • Banana jacks serve as the DC power input terminals

Design tools & simulation

SIMULATION MODEL Download
SLLM176.ZIP (36 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI 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 (...)

Reference designs

REFERENCE DESIGNS Download
Tamagawa Encoder Interface Protocol on AM437x Reference Design
TIDEP-0101 — The commonly-accepted existing solution to interface Tamagawa SmartAbs full-absolute or Smart Inc encoders with a drive feedback and control system is to use a Smartceiver AU5561N1. Use of these receivers requires additional components, complexity, and costs to the system. This reference design (...)
document-generic Schematic
REFERENCE DESIGNS Download
Non-Isolated RS-485 to Wi-Fi Bridge with 24 VAC Power Reference Design
TIDA-00485 The TIDA-00485 TI Design uses Texas Instruments SimpleLink Wi-Fi CC3200 Internet-on-a-chip Wireless MCU module to create a data bridge between an RS-485 network and a Wi-Fi network. An SN65HVD72 transceiver provides the RS-485 Interface with 12 kV of ESD protection, and additional protection is (...)
document-generic Schematic
REFERENCE DESIGNS Download
Thermostat Implementation with MSP430 Microcontroller Reference Design
TIDM-FRAM-THERMOSTAT This reference design, featuring the MSP430FR4133 MCU, is for a battery-powered thermostat with an RS-485 remote control. The design provides accurate temperature measurement, a 3.4 inch LCD and extended battery life through ultra-low power operation.  
document-generic Schematic
REFERENCE DESIGNS Download
Low-Cost Water Meter Implementation with FRAM Microcontroller Reference Design
TIDM-FRAM-WATERMETER This reference design, featuring the MSP430FR4133 FRAM-based MCU, is a fully-functional battery powered magnetic pulse water meter with wired and wireless automatic meter reading (AMR) function. The instantaneous and total flow is displayed on the LCD. This design works in low power mode and reduces (...)
document-generic Schematic
REFERENCE DESIGNS Download
RS-485 Power Over Bus Reference Design
TIDA-00527 This design demonstrates the implementation of a buspowered RS-485 application and allows to evaluate different filters for the DC power. This saves the cost and space for a separate power wiring.

A new preferred approach by using On-off key modulation to transmit RS-485 signals over power line is (...)

document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SON (DRB) 8 View options
VSSOP (DGK) 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.

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