Product details


Number of transmitters 1 Number of receivers 1 Duplex Half Supply voltage (Nom) (V) 5 Signaling rate (Max) (Mbps) 10 IEC 61000-4-2 contact (+/- kV) 8 Isolated No Fault protection (V) -18 to 18 Number of nodes 256 Common mode range -7 to 12 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 open-in-new Find other RS-485 & RS-422 transceivers


  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 4.5-V to 5.5-V supply voltage
  • 10 Mbps, Half-Duplex RS-422/RS-485
  • Bus I/O protection
    • ± 16-kV HBM ESD
    • ± 8-kV IEC 61000-4-2 contact discharge
    • ± 8-kV IEC 61000-4-2 air gap discharge
    • ± 4-kV IEC 61000-4-4 fast transient burst
  • Extended industrial temperature range: -40°C to 125°C
  • Large receiver hysteresis for noise rejection
  • Low power consumption
    • Low standby supply current: < 1 µA
    • Quiescent during operation: < 840 µA
  • Glitch-free power-up/down for hot plug-in capability
  • Open, short and idle bus failsafe
  • 1/8 unit load (up to 256 bus nodes)

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


THVD1520 is a robust half-duplex RS-485 transceiver for industrial applications. The bus pins are immune to high levels of IEC contact discharge ESD events eliminating the need of additional system-level protection components.

The device operates from a single 5-V supply. The wide common-mode voltage range and low input leakage on bus pins make THVD1520 suitable for multi-point applications over long cable runs.

THVD1520 is available in industry standard 8-pin SOIC package for drop-in compatibility. The device is characterized for ambient temperatures from –40°C to 125°C.

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

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet THVD1520 10 Mbps RS-485 Transceiver With ±8-kV IEC ESD Protection datasheet Jan. 08, 2018
Technical articles RS-485 basics: how to calculate unit loads and the maximum number of nodes on your network Mar. 08, 2016

Design & development

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

Hardware development

document-generic User guide
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 (...)

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

  • 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

Design tools & simulation

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 (...)
  • 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
  • (...)
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

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Ordering & quality

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