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DS485N - Texas Instruments

Description: RS-485/RS-422 Multipoint Transceiver

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DS485N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P (R-PDIP-T8)
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DS485N - Texas Instruments  - 3D model - Dual-In-Line Packages - P (R-PDIP-T8)
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DS485N Details

  • Manufacturer Part Number:

    DS485N

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.000002 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422; EIA-485; TIA-485

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.817 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Out Swing-Min:

    1.5 V

  • Output Low Current-Max:

    0.004 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    320 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max:

    0.9 mA

  • Supply Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    4.75 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Transmit Delay-Max:

    65 ns

  • Width:

    7.62 mm

DS485N Frequently Asked Questions (FAQs)

  • The maximum cable length for the DS485N is dependent on the baud rate and the type of cable used. As a general rule, the maximum cable length is 4000 feet (1219 meters) at 9600 bps, 2000 feet (610 meters) at 19,200 bps, and 1000 feet (305 meters) at 38,400 bps.
  • Yes, the DS485N can be used in a multi-master configuration. However, it is essential to ensure that only one master is transmitting at a time to avoid data corruption and bus conflicts.
  • To handle bus contention and collisions, it is recommended to implement a collision detection and automatic retransmission mechanism in the software. This can be done using a protocol such as RS-485 with 9-bit addressing and a token-passing mechanism.
  • The minimum number of devices required to terminate the bus is two, one at each end of the bus. This is to ensure that the bus is properly terminated and to prevent signal reflections.
  • Yes, the DS485N can be used in a point-to-point configuration. In this case, the DE (driver enable) pin can be tied high to enable the driver continuously, and the RE (receiver enable) pin can be tied low to disable the receiver.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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