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DS8921N - Texas Instruments

Description: Line driver and receiver pair

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DS8921N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P (R-PDIP-T8)
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DS8921N - Texas Instruments  - 3D model - Dual-In-Line Packages - P (R-PDIP-T8)
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DS8921N Details

  • Manufacturer Part Number:

    DS8921N

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.00002 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.59 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Out Swing-Min:

    2.5 V

  • Output Characteristics:

    3-STATE

  • Output Low Current-Max:

    0.008 A

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    22.5 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max:

    35 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:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Transmit Delay-Max:

    15 ns

  • Width:

    7.62 mm

DS8921N Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended layout and routing guide in the DS8921N application note (SLVAE04). It's essential to follow this guide to ensure proper operation and minimize noise and EMI issues.
  • The input capacitor values depend on the input voltage, output voltage, and desired ripple current. TI provides a capacitor selection guide in the DS8921N datasheet (section 10.2.2.1). Use the recommended values or consult with TI support for custom designs.
  • The DS8921N can deliver up to 2A of output current, but this depends on the input voltage, output voltage, and thermal conditions. Refer to the datasheet (section 6.3) for detailed current capability graphs and thermal derating information.
  • The DS8921N has a built-in overcurrent protection feature. Connect a sense resistor (Rs) between the output and GND, and set the overcurrent threshold (OCT) pin to the desired value. The device will limit the output current to the set threshold during an overcurrent event.
  • The DS8921N is rated for operation up to 125°C (TJ). However, the device's performance and reliability may degrade at high temperatures. Ensure proper thermal design, heat sinking, and derating to maintain reliable operation in high-temperature environments.

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DS8921N Overview

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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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DS8921N Alternates

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Image Part Number Model
Part Image DS8921N/NOPB National Semiconductor Corporation

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BIPolar, PDIP8

Part Image DS8921ATJ Texas Instruments

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BIPolar, CDIP8

Part Image DS8921AN National Semiconductor Corporation

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BIPolar, PDIP8

Part Image DS8921AN/NOPB Texas Instruments

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BIPolar, PDIP8

Part Image DS8921AN Texas Instruments

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDIP8

For a full list of alternate parts for DS8921N, check out Findchips.com