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Product details

Parameters

Supply voltage(s) (Nom) (V) 3.3, 5 Number of TX 1 Number of RX 1 Duplex Half Signaling rate (Max) (Mbps) 0.5 IEC 61000-4-2 contact (+/- kV) 18 HBM ESD (kV) 30 Fault protection (V) -18 to 18 Number of nodes 256 Common mode range -15 to 15 ICC (Max) (mA) 2.8 Features IEC ESD protection, Extended common mode Isolated No Rating Catalog Operating temperature range (C) -40 to 125 Approx. price (US$) 0.87 | 1ku 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

  • Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
  • 3 V to 5.5 V Supply Voltage
  • Differential Output Exceeds 2.1 V for PROFIBUS Compatibility with 5-V Supply
  • Bus I/O ESD Protection
    • ±30 kV HBM
    • ±18 kV IEC 61000-4-2 Contact Discharge
    • ±25 kV IEC 61000-4-2 Air-Gap Discharge
    • ±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Operational Common-mode
    Range: ±15 V
  • Low EMI 500 kbps and 50 Mbps Data Rates
  • Large Receiver Hysteresis for Noise Rejection
  • Low Power Consumption
    • Standby Supply Current: < 1 µA
    • Current During Operation: < 3 mA
  • Extended Ambient Temperature
    Range: –40°C to 125°C
  • 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)
  • Small-Size VSON and VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility

All trademarks are the property of their respective owners.

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

Description

THVD14xx is a family of noise-immune RS-485/RS- 422 transceivers designed to operate in rugged industrial environments. The bus pins of these devices are robust to high levels of IEC electrical fast transients (EFT) and IEC electrostatic discharge (ESD) events, eliminating the need for additional system level protection components.

Each of these devices operates from a single supply between 3 V and 5.5 V. The devices in this family feature an extended common-mode voltage range which makes them suitable for multi-point applications over long cable runs.

THVD14xx family of devices is available in small VSON and VSSOP packages for space constrained applications. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.

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

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No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet THVD14xx 3.3-V to 5-V RS-485 Transceivers with ±18-kV IEC ESD Protection datasheet (Rev. E) May 02, 2019
Application notes How to isolate signal and power for an RS-485 system (Rev. B) Oct. 16, 2018
Technical articles Small doesn’t mean you compromise performance when implementing signal isolation May 25, 2017
Technical articles Upgrading the standard: a better way to drive peripherals Jun. 20, 2014
Technical articles How Thunderbolt™ 2 enables 4k video resolution Apr. 03, 2014
Technical articles Going for distance or going for speed on the RS-485 bus? Mar. 05, 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
$49.00
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

Design tools & simulation

SIMULATION MODELS Download
SLLM408.ZIP (45 KB) - IBIS Model
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

Reference designs

REFERENCE DESIGNS Download
Reference Design for Converting RS-232 Signaling to RS-485 Signaling
TIDA-060008 — This reference design provides a circuit of converting RS-232 signaling to RS-485 signaling. This allows for long-distance communication, since the range supported by RS-232 is normally less than 50 feet while the range for RS-485's can exceed 1000 feet. The design implements bidirectional (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

Support & training

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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

RS-485 Overview

This training video provides an overview of the RS-485 standard the basics, the benefits and the reasons to choose RS-485 over other standards.

Posted: 03-Jan-2017
Duration: 19:28

View TI's RS-485 portfolio

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