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ST485BDR - STMicroelectronics

Description: ST485BDR, Line Transceiver, RS-485, RS-422 2.5Mbit/s Differential, 5 V, 8-Pin SO

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ST485BDR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO--8
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ST485BDR - STMicroelectronics  - 3D model - Small Outline Packages - SO--8
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ST485BDR Details

  • Manufacturer Part Number:

    ST485BDR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    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

  • 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:

    210 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

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin (Sn) - immersion

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Transmit Delay-Max:

    60 ns

  • Width:

    3.9 mm

ST485BDR Frequently Asked Questions (FAQs)

  • The maximum cable length supported by the ST485BDR is 1200 meters, but it depends on the baud rate and the cable characteristics.
  • To ensure signal integrity and minimize EMI, use twisted-pair cables, keep the transmitter and receiver grounds connected, and use a common mode choke or ferrite bead on the bus lines.
  • The ST485BDR supports data rates up to 10 Mbps, but the actual data rate may be limited by the cable length, baud rate, and system design.
  • Implement a non-destructive bit-wise arbitration mechanism, use a master-slave architecture, or employ a token-passing protocol to handle bus contention and collisions.
  • The power consumption of the ST485BDR is typically around 30 mA, but it can be reduced by using a lower supply voltage, reducing the baud rate, or using a low-power mode.

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ST485BDR 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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