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RS485 click 3.3V - MikroElektronika Balanced Data Transmission

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  • RS485 click 3.3V - MikroElektronika Balanced Data Transmission

    RS485 click 3.3V carries the SN65HVD12 half-duplex, RS-485 transceiver from Texas Instruments.  It is designed for balanced data transmission and complies with EIA standards RS-485 and RS-422. The click is designed to run on a 3.3V power supply. RS485 5V click communicates with the target microcontroller over UART interface, with additional functionality provided by the PWM pin on the mikroBUS™ line.

    SN65HVD12 features

    Internal ESD protection circuits protect the transceiver bus terminals against ±16-kV Human Body Model (HBM) electrostatic discharges and ±4-kV electrical fast transients (EFT).

    The SN65HVD1x half-duplex family provides internal biasing of the receiver input thresholds for open-circuit, bus-idle, or short-circuit failsafe conditions, and a typical receiver hysteresis of 35 mV

    How the click works

    There are four screw terminals on the board Those marked with “+” and “-” are RS485 differential high and differential low communication lines. We added two more terminals for VCC and GND reference if needed for further interfacing. Communication with the board is done using simple UART interface.

    Specifications

    Type RS485
    Applications Board is suitable for Low power RS-485 systems, DTE/DCE interface Packet switching, Local area networks (LNAs), Data concentration, Data multiplexers, Integrated services digital network (ISDN) and more
    On-board modules SN65HVD12 differential line transceiver
    Key Features On-board Bias and Termination resistors with related jumpers. Simple UART communication interface
    Key Benefits Meets or Exceeds the Requirements of ANSI TIA/EIA-485-A
    Interface GPIO,UART
    Input Voltage 3.3V
    Compatibility mikroBUS
    Click board size M (42.9 x 25.4 mm)

     

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