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DS485MX - Texas Instruments

Description: RS-422/RS-485 Interface IC Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85

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DS485MX - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G14)
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DS485MX - Texas Instruments  - 3D model - Small Outline Packages - D (R-PDSO-G14)
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DS485MX Details

  • Manufacturer Part Number:

    DS485MX

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    PLASTIC, 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

DS485MX Frequently Asked Questions (FAQs)

  • The maximum cable length for the DS485MX 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.
  • The DS485MX is a half-duplex transceiver, meaning it can only transmit or receive at a time. To configure it for half-duplex operation, connect the DE (driver enable) pin to the RTS (request to send) pin of the microcontroller. For full-duplex operation, use two separate transceivers, one for transmit and one for receive.
  • The minimum voltage supply for the DS485MX is 4.75V and the maximum voltage supply is 5.25V. Operating the device outside of this range may affect its performance and reliability.
  • To protect the DS485MX from ESD and surge damage, use TVS (transient voltage suppression) diodes or surge protectors on the RS-485 bus lines. Additionally, follow proper PCB layout and grounding practices to minimize the risk of damage.
  • Yes, the DS485MX can be used with a 3.3V microcontroller. However, the device's VCC pin should be connected to a 5V power supply, and the microcontroller's I/O pins should be 5V tolerant or use level shifters to ensure compatibility.

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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 DS485M Rochester Electronics LLC

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Part Image DS485TM Rochester Electronics LLC

LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8

Part Image DS485TMX National Semiconductor Corporation

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO8

Part Image DS485MX/NOPB National Semiconductor Corporation

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Part Image DS485M National Semiconductor Corporation

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