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SN74LS244NS - Texas Instruments

Description: Octal Buffers And Line Drivers With 3-State Outputs

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SN74LS244NS - Texas Instruments - PCB symbol
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PCB Footprints
SN74LS244NS - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - NS (R-PDSO-G20)
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3D Models
SN74LS244NS - Texas Instruments - 3D model - Small Outline Packages - NS (R-PDSO-G20)
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SN74LS244NS Details

  • Manufacturer Part Number:

    SN74LS244NS

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Control Type:

    ENABLE LOW

  • Count Direction:

    UNIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • Length:

    12.6 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS DRIVER

  • Max I(ol):

    0.024 A

  • Number of Bits:

    4

  • Number of Functions:

    8

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    50 mA

  • Prop. Delay@Nom-Sup:

    18 ns

  • Propagation Delay (tpd):

    18 ns

  • Seated Height-Max:

    2 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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    5.3 mm

SN74LS244NS Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS244NS is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low and disabled when OE is high. You should connect OE to a logic low signal to enable the outputs, and to a logic high signal to disable them.
  • The input voltage threshold for the SN74LS244NS is typically around 2.0V for a logic high and 0.8V for a logic low, but it can vary depending on the specific operating conditions and temperature.
  • Yes, the SN74LS244NS is compatible with both 3.3V and 5V systems, but you should ensure that the input and output voltage levels are within the recommended operating range.
  • You should ensure that the power supply voltage (VCC) is stable and within the recommended operating range before applying any input signals. During power-down, you should disable the outputs by setting OE high before removing the power supply voltage.

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SN74LS244NS 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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