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SN65HVD23D Datasheet(PDF) 1 Page - Texas Instruments |
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SN65HVD23D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page SN65HVD20,SN65HVD21 SN65HVD22,SN65HVD23,SN65HVD24 SLLS552D − DECEMBER 2002 − REVISED APRIL 2005 EXTENDED COMMONMODE RS485 TRANSCEIVERS FEATURES D Common-Mode Voltage Range (−20 V to 25 V) More Than Doubles TIA/EIA-485 Requirement D Receiver Equalization Extends Cable Length, Signaling Rate (HVD23, HVD24) D Reduced Unit-Load for up to 256 Nodes D Bus I/O Protection to Over 16-kV HBM D Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions D Low Standby Supply Current 1-µA Max D More Than 100 mV Receiver Hysteresis APPLICATIONS D Long Cable Solutions − Factory Automation − Security Networks − Building HVAC D Severe Electrical Environments − Electrical Power Inverters − Industrial Drives − Avionics DESCRIPTION The transceivers in the HVD2x family offer performance far exceeding typical RS−485 devices. In addition to meeting all requirements of the TIA/EIA−485−A standard, the HVD2x family operates over an extended range of common-mode voltage, and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is ideally suited for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers. These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems. These devices combine a 3-state differential driver and a differential receiver, which operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a differential bus port that offers minimum loading to the bus. This port features an extended common-mode voltage range making the device suitable for multipoint applications over long cable runs. −20 V +25 V −7 V +12 V SUPER−485 RS−485 −20 V −15 V −10 V −5 V 0 5 V 10 V 15 V 20 V 25 V HVD2x Devices Operate Over a Wider Common-Mode Voltage Range 0.1 1 10 100 10 100 1000 HVD20 HVD23 HVD24 HVD21 HVD22 Cable Length − m HVD2x APPLICATION SPACE PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. www.ti.com Copyright 2002 − 2003, Texas Instruments Incorporated |
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