Answered

• SN65HVD1791: Using SN65HVD1791D as Half duplex RS485 instead of Full Duplex

  

  N S

  Resolved

  Part Number: SN65HVD1791 Could SN65HVD1791D be used as Half duplex RS485 by simply shorting A-Y ----> Then using this as 'A' terminal for Half Duplex RS485 B-Z ----> Then using this as 'B' terminal for Half Duplex RS485 or is it not…

  • Resolved

  • 11 months ago
  • Interface
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Answered

• SN65HVD1791: Y, Z pin abs max

  

  Yusuke Mukuno

  Resolved

  Part Number: SN65HVD1791 Hi expert, Could you please let me know the ABS max for Y and Z pins? I think the description in the datasheet is confusing. I don't understand ABS max for HVD1791 Y,Z pin. (datasheet) HVD1785, 86, 91 , 92, 93 A, B pins –7…

  • Resolved

  • over 1 year ago
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• SN65HVD1791: SN65HVD1291 full duplex transmit signal steadily drifts higher as data is sent

  

  Will Dietz

  Part Number: SN65HVD1791 Having an issue with the output of the SN65HVD1791 steadily climbs to a higher reference voltage as pulses are being sent to the slave device. Reference voltage ramps back down to 0V when pulses stop. This is represented by the…

  • over 1 year ago
  • Interface
  • Interface forum
Answered

• SN65HVD1791: SN65HVD1791

  

  Erlend Bjorndal

  Resolved

  Part Number: SN65HVD1791 SN65HVD1791 Fault-Protected RS-485 Transceiver (datasheet SLLS872I –JANUARY 2008–REVISED AUGUST 2015): On the datasheet page 22, it says "Use 1-kΩ-to-10-kΩ pullup and pulldown resistors for enable lines to limit noise…

  • Resolved

  • over 2 years ago
  • Interface
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• SN65HVD1791 running at 3.3V

  

  Jeff Young1

  Other Parts Discussed in Thread: SN65HVD1791 We are using the SN65HVD1791 with a VCC at 3.3V instead of the recommended 5V. It seems to work fine in the lab. Do you expect us to run into any problems working with this chip at a lower voltage?

  • over 6 years ago
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  • Interface forum

• UART RS422 Interface (full Duplex) using SN65HVD1791

  

  Oliver Borges

  TI Thinks Resolved

  Other Parts Discussed in Thread: SN65HVD1791 Hello, we are looking for a short application note / schematic how to design a uart (5V microcontroller Rx & Tx) to RS422 (one differential pair for Rx, one for Tx) full duplex Interface. We found the SN65HVD1791…

  • over 6 years ago
  • Interface
  • Interface forum

• Interface : SN65HVD1785/1786/1787、SN65HVD1791/1792/1793 バスピンの絶対最大定格について

  

  OKAWA

  Other Parts Discussed in Thread: SN65HVD1785 , SN65HVD1791 , SN65HVD1786 , SN65HVD1787 , SN65HVD1792 , SN65HVD1793 70V 接続障害保護 RS-485トランシーバとして、 SN65HVD1785/1786/1787、及びSN65HVD1791/1792/1793がございますが、 絶対最大定格のデータシートの記述が少々わかりずらい部分がありますため、 それぞれのデバイスにつき、バスピンの電圧範囲をまとめると以下の表の通りとなります…

  • over 7 years ago
  • Japanese E2E (日本語コミュニティ)
  • アナログ （Analog) (Read-Only)
Answered

• SN55LBC180: Can SN55LBC180 be used for RS422 application

  

  Mickey Zhang

  Resolved

  Part Number: SN55LBC180 Other Parts Discussed in Thread: SN65HVD1791 , SN65HVD76 Hi team Q1: Can SN55LBC180 be used for RS422 application? Q2: How to verify if a RS485 transceiver can be compatible with RS422? The attach is the screenshot for the SN65HVD1791…

  • Resolved

  • over 3 years ago
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  • Interface forum
Answered

• RE: SN65HVD179: Shorting pin 7

  

  Max Robertson

  Resolved

  Hi Arthur, You're right that in general the A and B pins are somewhat independent and voltages on one shouldn't couple through to the other. In the case of a 28-V short-circuit, though, damage to the device would be likely (given that the absolute maximum…

  • over 3 years ago
  • Interface
  • Interface forum
Answered

• RE: RS-485 Bus-Polarity Correction Question

  

  Doseriahc

  Resolved

  I saw your video : Engineer It - How to isolate a power supply for RS485 & CAN Swaroop Vaidyanath was very nervous. jeje I need help, mm how calculate the value of resistor for (DE) in the sn65hvd1791 device. http://www.ti.com/lit/ds/symlink/sn65hvd1791…

  • over 7 years ago
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