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ST485ABDR - STMicroelectronics

Description: Very high speed low power RS-485/RS-422 transceiver

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ST485ABDR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-8 mechanical data
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ST485ABDR Details

  • Manufacturer Part Number:

    ST485ABDR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    LEAD FREE, SOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6.72

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422; EIA-485

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • 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):

    260

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    30 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    5 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    40

  • Transmit Delay-Max:

    30 ns

  • Width:

    3.9 mm

ST485ABDR Frequently Asked Questions (FAQs)

  • The maximum cable length supported by the ST485ABDR is 1200 meters, but it depends on the baud rate and the cable characteristics.
  • To ensure reliable data transmission over long distances, use a shielded twisted pair cable, keep the transmitter and receiver grounds connected, and use a common mode choke or ferrite bead to reduce electromagnetic interference.
  • The ST485ABDR supports data rates up to 10 Mbps, but the maximum data rate depends on the specific application and cable characteristics.
  • To handle bus contention and collisions, implement a collision detection and arbitration mechanism, such as a token-passing protocol or a master-slave architecture, to ensure only one device transmits at a time.
  • Key considerations include cable selection, termination, and grounding, as well as ensuring proper signal integrity, noise reduction, and electromagnetic compatibility.

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ST485ABDR Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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