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ISL8485CBZ - Renesas Electronics

Description: The ISL8485, ISL8490, and ISL8491 RS-485 / RS-422 devices are BiCMOS 5V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Unlike competitive devices, this family is specified for 10% tolerance supplies (4. 5V to 5. 5V). The ISL8485, ISL8490, and ISL8491 feature data rates up to 5Mbps. All devices present a single unit load to the RS-485 bus, which allows up to 32 transceivers on the network. The receiver (Rx) inputs feature a “fail-safe if open” design,

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ISL8485CBZ - Renesas Electronics - PCB symbol
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ISL8485CBZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M8-15
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ISL8485CBZ - Renesas Electronics - 3D model - Small Outline Packages - M8-15
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ISL8485CBZ Details

  • Manufacturer Part Number:

    ISL8485CBZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOICN

  • Package Description:

    SOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    M8.15

  • Country Of Origin:

    Mainland China, Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Date Of Intro:

    2017-10-23

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    7

  • 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-485; EIA-422

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Out Swing-Min:

    1.5 V

  • Output Characteristics:

    3-STATE

  • Output Low Current-Max:

    0.004 A

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Receive Delay-Max:

    150 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    0.9 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    5 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    4.5 V

  • Supply Voltage1-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Transmit Delay-Max:

    50 ns

  • Width:

    3.9 mm

ISL8485CBZ Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout in the ISL8485CBZ evaluation board user manual, which includes guidelines for component placement, routing, and thermal management. It's essential to follow these guidelines to minimize noise, ensure signal integrity, and prevent thermal issues.
  • The ISL8485CBZ is a versatile transceiver that can be configured for different applications using external resistors and capacitors. Renesas provides application notes and design guides that provide detailed configuration information for specific applications, including RS-485 and RS-422.
  • The maximum cable length supported by the ISL8485CBZ depends on the specific application, data rate, and cable characteristics. As a general rule, the maximum cable length is limited by the signal attenuation and distortion caused by the cable. Renesas recommends using a cable length of up to 4000 feet (1219 meters) for RS-485 applications, but this can be extended with the use of repeaters or signal conditioning devices.
  • The ISL8485CBZ has a high common-mode voltage range of up to ±15V, making it suitable for industrial and harsh environment applications. However, system designers must ensure that the common-mode voltage is within the specified range to prevent damage to the device. Additionally, the common-mode voltage can affect the signal integrity and noise immunity of the system, so it's essential to consider this in the system design.
  • The ISL8485CBZ has a maximum junction temperature of 150°C, and it's essential to ensure that the device operates within the specified temperature range to prevent thermal shutdown or damage. System designers can use thermal management techniques such as heat sinks, thermal pads, and airflow management to keep the device temperature within the specified range.

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ISL8485CBZ Overview

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