SN65HVD21 - Texas Instruments

SN65HVD21 Extended Common-Mode RS-485 Transceivers

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. The SN65HVD2x family operates over an extended range of common-mode voltages and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devi.

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 Environments
  – Electrical Power Inverters
  – Industrial Drives
  – Avionics 3 Descri.