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SN65HVD21AD - Texas Instruments

Description: Extended Common-Mode RS-485 Transceiver

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SN65HVD21AD Details

  • Manufacturer Part Number:

    SN65HVD21AD

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, MS-012AA, SOIC-8

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-485-A; TIA-485-A

  • 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:

    1.8 V

  • Output Characteristics:

    3-STATE

  • Output Low Current-Max:

    0.008 A

  • Output Polarity:

    TRUE

  • 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:

    50 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    12 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:

    NICKEL PALLADIUM GOLD

  • 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

SN65HVD21AD Frequently Asked Questions (FAQs)

  • The maximum cable length supported by the SN65HVD21AD depends on the baud rate and the type of cable used. As a general guideline, Texas Instruments recommends a maximum cable length of 100 meters at 1 Mbps, 50 meters at 5 Mbps, and 20 meters at 10 Mbps.
  • To ensure reliable communication in noisy environments, it is recommended to use a shielded cable, twisted pair wiring, and common-mode chokes. Additionally, the SN65HVD21AD has built-in noise filtering and common-mode rejection, which can help to improve signal integrity.
  • The power consumption of the SN65HVD21AD depends on the operating mode and the supply voltage. In normal operation, the device typically consumes around 10-15 mA at 3.3V or 5V supply voltage. In shutdown mode, the power consumption is typically less than 1 μA.
  • Yes, the SN65HVD21AD can be used in a multi-point configuration, but it is limited to a maximum of 32 nodes on the bus. Additionally, the device must be configured in a star topology, with one master node and multiple slave nodes.
  • To troubleshoot communication issues with the SN65HVD21AD, it is recommended to check the signal integrity using an oscilloscope, verify the correct configuration of the device, and check for any noise or interference on the bus. Additionally, Texas Instruments provides a range of tools and software to help with debugging and troubleshooting.

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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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