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SN74ALS240ADBR - Texas Instruments

Description: Buffers & Line Drivers 3-State Outputs 20-SSOP

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SN74ALS240ADBR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB0020A
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SN74ALS240ADBR - Texas Instruments  - 3D model - Small Outline Packages - DB0020A
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SN74ALS240ADBR Details

  • Manufacturer Part Number:

    SN74ALS240ADBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Control Type:

    ENABLE LOW

  • Count Direction:

    UNIDIRECTIONAL

  • Family:

    ALS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    7.2 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    BUS DRIVER

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • 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:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    25 mA

  • Prop. Delay@Nom-Sup:

    9 ns

  • Propagation Delay (tpd):

    9 ns

  • Qualification Status:

    Not Qualified

  • Screening Level:

    MIL-PRF-38535

  • Seated Height-Max:

    2 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 Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

SN74ALS240ADBR Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the SN74ALS240ADBR is 4.5V to 5.5V, although it can operate as low as 4.2V with reduced performance.
  • The output enable (OE) pin should be tied low to enable the outputs, and tied high to disable the outputs. Leaving the OE pin floating can cause unpredictable behavior.
  • The maximum frequency of operation for the SN74ALS240ADBR is typically around 100 MHz, although this can vary depending on the specific application and operating conditions.
  • To ensure signal integrity, use proper PCB layout techniques, such as using short signal traces, minimizing impedance mismatches, and using termination resistors as needed. Additionally, consider using a signal integrity analysis tool to simulate and optimize the design.
  • The SN74ALS240ADBR is a 5V device, but it can be used with 3.3V logic as long as the input voltage is within the recommended operating range (4.2V to 5.5V). However, the output voltage will still be 5V, so level shifting may be required to interface with 3.3V devices.

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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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