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DS485TM - Texas Instruments

Description: RS-485/422 Multip Transceiver

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DS485TM - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G8)
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DS485TM - Texas Instruments  - 3D model - Small Outline Packages - D (R-PDSO-G8)
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DS485TM Details

  • Manufacturer Part Number:

    DS485TM

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOP, SOP8,.25

  • Pin Count:

    8

  • Reach Compliance Code:

    Not Compliant

  • 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-PDSO-G8

  • JESD-609 Code:

    e0

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    1.5 V

  • Output Low Current-Max:

    0.004 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    320 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 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:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    20

  • Transmit Delay-Max:

    65 ns

  • Width:

    3.9 mm

DS485TM Frequently Asked Questions (FAQs)

  • The maximum cable length for DS485TM is dependent on the baud rate and cable characteristics. As a general guideline, TI recommends a maximum cable length of 4000 feet (1219 meters) at 9600 bps, 2000 feet (610 meters) at 19,200 bps, and 1000 feet (305 meters) at 38,400 bps.
  • The DS485TM bus should be terminated with a 120-ohm resistor at each end of the bus to prevent signal reflections and ensure reliable data transmission.
  • The maximum number of nodes that can be connected to a DS485TM bus is 32, assuming each node has a unit load (UL) of 1. A UL is a measure of the bus loading, with 1 UL being equivalent to 12 mA of current.
  • Yes, the DS485TM can be used in a multi-drop configuration, where multiple devices are connected to the same bus. However, the total bus loading should not exceed 32 unit loads (UL) to ensure reliable data transmission.
  • Error handling and retries should be implemented at the application layer. The DS485TM provides a receive error flag (RE) that can be used to detect errors. The application should implement a retry mechanism to retransmit data in case of errors.

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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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Part Image DS485TMX National Semiconductor Corporation

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Part Image DS485MX/NOPB National Semiconductor Corporation

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For a full list of alternate parts for DS485TM, check out Findchips.com