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Product details

Parameters

Number of TX 1 Number of RX 1 Duplex Full Supply voltage (Nom) (V) 3.3 Signaling rate (Max) (Mbps) 0.4 IEC 61000-4-2 contact (+/- kV) 16 Isolated No Fault protection (V) -13 to 16.5 Number of nodes 256 Common mode range -7 to 12 ICC (Max) (mA) 1.1 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 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other RS-485 & RS-422 transceivers

Features

  • 1/8 Unit-Load Options Available
    • Up to 256 Nodes on the Bus
  • Bus I/O Protection
    • > ±30 kV HBM protection
    • > ±16 kV IEC61000-4-2 Contact Discharge
    • > ±4 kV IEC61000-4-4 Fast Transient Burst
  • Extended Industrial Temperature Range:
    –40°C to 125°C
  • Large Receiver Hysteresis (70 mV) for Noise Rejection
  • Low Power Consumption
    • < 1.1 mA Quiescent Current During Operation
    • Low Standby Supply Current: 10 nA Typical,
      < 5 µA (maximum)
  • Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications
  • 5-V Tolerant Logic Inputs Compatible With 3.3-V or 5-V Controllers
  • Signaling Rate Options Optimized for:
    400 kbps (1470, 1471), 20 Mbps (1473, 1474), 50 Mbps (1476, 1477)

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Description

The SN65HVD147x family of full-duplex transceivers feature the highest ESD protection in the RS-485 portfolio, supporting ±16-kV IEC61000-4-2 contact discharge and > ±30-kV HBM ESD protection. These RS-485 transceivers have robust 3.3-V drivers and receivers and are offered in a standard SOIC package as well as in a small-footprint MSOP package. The large receiver hysteresis of the SN65HVD147x devices provides immunity to conducted differential noise and the wide operating temperature enables reliability in harsh operating environments.

These devices each combine a differential driver and a differential receiver, which operate from a single 3.3-V power supply. Each driver and receiver has separate input and output pins for full-duplex bus communication designs. These devices all feature a wide common-mode voltage range which makes the devices suitable for multi-point applications over long cable runs.

The SN65HVD1471, SN65HVD1474, and SN65HVD1477 devices are fully enabled with no external enabling pins.

The SN65HVD1470, SN65HVD1473, and SN65HVD1476 devices have active-high driver enables and active-low receiver enables. A low, less than 5-µA standby current can be achieved by disabling both the driver and receiver.

These devices are characterized from –40°C to 125°C.

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Same functionality and pinout but is not an equivalent to the compared device:
THVD1451 ACTIVE 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection Pin-to-pin device that offers integrated IEC ESD protection (18-kV contact discharge), IEC EFT (4-kV noise immunity), and extended common voltage range

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet SN65HVD147x 3.3-V Full-Duplex RS-485 Transceivers with ±16-kV IEC ESD datasheet (Rev. E) Apr. 17, 2019
Technical articles Not all ESD specs cover the IEC ESD strike zone: Look for high IEC61000-4-2 coverage Jun. 27, 2014
User guides RS-485 Full-Duplex EVM User’s Guide Jun. 04, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
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 (...)

Design tools & simulation

SIMULATION MODELS Download
SLLM252.ZIP (38 KB) - IBIS Model
SIMULATION TOOLS 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 TOOLS 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 (...)
document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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