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DS485M - Texas Instruments

Description: DS485 Low Power RS-485/RS-422 Multipoint Transceiver

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DS485M - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G8)
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DS485M - Texas Instruments  - 3D model - Small Outline Packages - D (R-PDSO-G8)
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DS485M Details

  • Manufacturer Part Number:

    DS485M

  • Brand Name:

    Texas Instruments

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOP-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-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:

    70 °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:

    COMMERCIAL

  • 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

DS485M Frequently Asked Questions (FAQs)

  • The maximum cable length for the DS485M is dependent on the baud rate and the type of cable used. As a general rule, the maximum cable length is around 4000 feet (1219 meters) at 9600 bps, but this can be affected by factors such as cable quality, noise, and termination.
  • The DS485M 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 main difference between the DS485M and the DS485T is that the DS485M is a half-duplex transceiver, while the DS485T is a full-duplex transceiver. The DS485M can transmit and receive data, but not simultaneously, while the DS485T can transmit and receive data simultaneously.
  • Yes, the DS485M can be used with a 3.3V power supply. The device is specified to operate from 4.5V to 5.5V, but it can also operate at 3.3V with some limitations. However, the device's performance and reliability may be affected at lower voltages.
  • Error handling and retries on the DS485M can be implemented using a combination of hardware and software techniques. The device has built-in error detection and correction mechanisms, such as parity and checksum checks. In addition, software can be used to implement retry mechanisms and error handling protocols.

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DS485M Overview

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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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For a full list of alternate parts for DS485M, check out Findchips.com