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SN74LS641-1DW - Texas Instruments

Description: Texas Instruments SN74LS641-1DW, Bus Transceiver, 8-Bit Non-Inverting TTL, 4.75 → 5.25 V, 20-Pin SOIC

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SN74LS641-1DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0020A
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SN74LS641-1DW - Texas Instruments  - 3D model - Small Outline Packages - DW0020A
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SN74LS641-1DW Details

  • Manufacturer Part Number:

    SN74LS641-1DW

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    WITH DIRECTION CONTROL

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    OPEN-COLLECTOR

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    90 mA

  • Prop. Delay@Nom-Sup:

    25 ns

  • Propagation Delay (tpd):

    25 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

SN74LS641-1DW Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS641-1DW is 30 MHz, but it can vary depending on the specific application and operating conditions.
  • The SN74LS641-1DW has a maximum junction temperature of 150°C. To handle thermal management, ensure good airflow, use a heat sink if necessary, and follow proper PCB design and layout guidelines to minimize thermal resistance.
  • The recommended power-on sequence for the SN74LS641-1DW is to apply VCC first, followed by the input signals. This helps prevent unwanted output states during power-up.
  • The SN74LS641-1DW is a 5V device, but it can be used in a 3.3V system with some limitations. The output voltage will be lower, and the device may not meet its specified timing parameters. Consult the datasheet and application notes for more information.
  • To troubleshoot issues with the SN74LS641-1DW, start by verifying the power supply voltage, checking for proper input signal levels and timing, and using a logic analyzer or oscilloscope to monitor the device's output signals.

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SN74LS641-1DW 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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