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SN65HVD21 - Extended Common-Mode RS-485 Transceivers

Download the SN65HVD21 datasheet PDF. This datasheet also covers the SN65HVD20 variant, as both devices belong to the same extended common-mode rs-485 transceivers family and are provided as variant models within a single manufacturer datasheet.

General Description

The transceivers in the SN65HVD2x family offer performance far exceeding typical RS-485 devices.

In addition to meeting all requirements of the TIA/EIA‑485-A standard.

Key Features

  • 1 Common-Mode Voltage Range (.
  • 20 V to 25 V) More Than Doubles TIA/EIA-485 Requirement.
  • Receiver Equalization Extends Cable Length, Signaling Rate (SN65HVD2[3,4]).
  • Reduced Unit-Load for up to 256 Nodes.
  • Bus I/O Protection to Over 16-kV HBM.
  • Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions.
  • Low Standby Supply Current 1 µA (Maximum).
  • More Than 100 mV Receiver Hysteresis 2.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN65HVD20-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
SN65HVD21A RS-485 Transceiver
SN65HVD21M-EP Extended Common-Mode RS-485 Transceivers
SN65HVD20 Extended Common-Mode RS-485 Transceivers
SN65HVD22 Extended Common-Mode RS-485 Transceivers
SN65HVD23 Extended Common-Mode RS-485 Transceivers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design SN65HVD20, SN65HVD21, SN65HVD22, SN65HVD23, SN65HVD24 SLLS552F – DECEMBER 2002 – REVISED NOVEMBER 2016 SN65HVD2x Extended Common-Mode RS-485 Transceivers 1 Features •1 Common-Mode Voltage Range (–20 V to 25 V) More Than Doubles TIA/EIA-485 Requirement • Receiver Equalization Extends Cable Length, Signaling Rate (SN65HVD2[3,4]) • Reduced Unit-Load for up to 256 Nodes • Bus I/O Protection to Over 16-kV HBM • Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions • Low Standby Supply Current 1 µA (Maximum) • More Than 100 mV Receiver Hysteresis 2 Applications • Long Cable Solutions – Factory Automation – Security Networks – Building HVAC • Severe Electrical Environm