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SN74LS642N - Texas Instruments

Description: Octal bus transceivers with open collector outputs

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SN74LS642N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T-20)
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SN74LS642N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T-20)
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SN74LS642N Details

  • Manufacturer Part Number:

    SN74LS642N

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    WITH DIRECTION CONTROL

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T20

  • JESD-609 Code:

    e4

  • Length:

    25.4 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.024 A

  • 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:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    95 mA

  • Prop. Delay@Nom-Sup:

    25 ns

  • Propagation Delay (tpd):

    25 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

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

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

SN74LS642N Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS642N is 30 MHz.
  • No, the SN74LS642N is a 5V device and is not compatible with 3.3V systems. You may need to use a level translator or a different device that is compatible with 3.3V systems.
  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low (connected to GND) and disabled when OE is high (connected to VCC).
  • The propagation delay of the SN74LS642N is typically around 10-15 ns, but this can vary depending on the specific application and operating conditions.
  • The SN74LS642N is rated for operation from 0°C to 70°C. If you need to operate the device in a higher temperature environment, you may need to use a different device or take additional cooling measures.

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SN74LS642N 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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Part Image SN74LS642N Rochester Electronics LLC

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Part Image HD74LS642P Hitachi Ltd

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Part Image N74LS642N Philips Semiconductors

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Part Image SN74LS642ND Motorola Semiconductor Products

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Part Image SN74LS642-1J Texas Instruments

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For a full list of alternate parts for SN74LS642N, check out Findchips.com