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ISL81334IAZ - Renesas Electronics

Description: The ISL81334 and ISL41334 are two-port interface ICs in which each port can be independently configured as a single RS-485, RS-422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver. With both ports set to the same mode, two RS-485, RS-422 transceivers, or four RS-232 transceivers are available. If either port is in RS-232 mode, the onboard charge pump generates RS-232 compliant ±5V Tx output levels from a single VCC supply as low as 4.5V. Four small 0.1µF capacitors are required for the charge pump.

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ISL81334IAZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M28.209
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ISL81334IAZ - Renesas Electronics  - 3D model - Small Outline Packages - M28.209
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ISL81334IAZ Details

  • Manufacturer Part Number:

    ISL81334IAZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Package Description:

    SSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    M28.209

  • Country Of Origin:

    Malaysia, Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    7

  • Additional Feature:

    ALSO OPERATE WITH 1 TRANSMITTER AND 1 RECEIVER IN RS-485 MODE

  • Differential Output:

    NO

  • Driver Number of Bits:

    2

  • High Level Input Current-Max:

    0.000002 A

  • Input Characteristics:

    SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-232; EIA-422; EIA-485

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    10.2 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    2

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    2 V

  • Output Low Current-Max:

    0.003 A

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Receive Delay-Max:

    120 ns

  • Receiver Number of Bits:

    2

  • Seated Height-Max:

    2 mm

  • Supply Current-Max:

    7 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:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Transmit Delay-Max:

    2000 ns

  • Width:

    5.3 mm

ISL81334IAZ Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power lines.
  • To ensure stability, use a minimum output capacitance of 10uF, and ensure that the output capacitor's ESR is within the recommended range. Also, avoid using ceramic capacitors with high ESL.
  • The ISL81334IAZ can handle input voltages up to 28V, but it's recommended to keep the input voltage below 24V for optimal performance and reliability.
  • The power dissipation of the ISL81334IAZ can be calculated using the formula: Pd = (Vin - Vout) x Iout x Efficiency. The efficiency can be obtained from the datasheet or by measuring the input and output currents and voltages.
  • A thermal pad is recommended to improve heat dissipation. A copper plane or a thermal via can be used to dissipate heat. Ensure good airflow around the IC and avoid blocking the airflow with components or obstacles.

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