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SN74ALS844DWR - Texas Instruments

Description: Texas Instruments

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SN74ALS844DWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G24)
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SN74ALS844DWR - Texas Instruments  - 3D model - Small Outline Packages - DW (R-PDSO-G24)
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SN74ALS844DWR Details

  • Manufacturer Part Number:

    SN74ALS844DWR

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    SOIC-20

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    WITH CLEAR AND PRESET; POWER OFF DISABLE OUTPUTS TO PERMIT LIVE INSERTION

  • Control Type:

    ENABLE LOW

  • Count Direction:

    UNIDIRECTIONAL

  • Family:

    ALS

  • JESD-30 Code:

    R-PDSO-G24

  • Length:

    15.4 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    BUS DRIVER

  • Max I(ol):

    0.048 A

  • Number of Bits:

    9

  • Number of Functions:

    1

  • Number of Ports:

    2

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Power Supply Current-Max (ICC):

    72 mA

  • Prop. Delay@Nom-Sup:

    22 ns

  • Propagation Delay (tpd):

    22 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

SN74ALS844DWR Frequently Asked Questions (FAQs)

  • The maximum clock frequency for the SN74ALS844DWR is 100 MHz, according to the datasheet.
  • Yes, the SN74ALS844DWR is specified to operate from 4.5V to 5.5V, but it is also compatible with 3.3V systems, although the output voltage levels may not be as high.
  • The SN74ALS844DWR has a maximum junction temperature of 150°C. To handle thermal dissipation, ensure good airflow, use a heat sink if necessary, and follow the recommended PCB layout guidelines.
  • Yes, the SN74ALS844DWR is 5V tolerant, meaning it can accept input voltages up to 5.5V even if the VCC supply is at a lower voltage, such as 3.3V.
  • The propagation delay of the SN74ALS844DWR is typically around 3.5 ns, but this can vary depending on the operating conditions and load capacitance.

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SN74ALS844DWR 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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