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SN54LS139AJ - Texas Instruments

Description: Decoder/Demultiplexer Dual 2-to-4 16-Pin CDIP Tube

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SN54LS139AJ - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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SN54LS139AJ - Texas Instruments  - 3D model - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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SN54LS139AJ Details

  • Manufacturer Part Number:

    SN54LS139AJ

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    SCHOTTKY CLAMPED FOR HIGH PERFORMANCE

  • Family:

    LS

  • Input Conditioning:

    STANDARD

  • JESD-30 Code:

    R-CDIP-T16

  • JESD-609 Code:

    e0

  • Length:

    19.56 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    2-LINE TO 4-LINE DECODER

  • Max I(ol):

    0.004 A

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Polarity:

    INVERTED

  • Package Body Material:

    CERAMIC, METAL-SEALED COFIRED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    10 mA

  • Prop. Delay@Nom-Sup:

    33 ns

  • Propagation Delay (tpd):

    38 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

SN54LS139AJ Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN54LS139AJ is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
  • To ensure reliable operation in high-temperature environments, it's essential to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and ensuring that the device is operated within its recommended temperature range (-55°C to 125°C).
  • The recommended power-on sequence for the SN54LS139AJ is to apply power to the VCC pin first, followed by the input signals. This helps to prevent unwanted latch-up or oscillation during power-up.
  • To handle bus contention when using the SN54LS139AJ as a demultiplexer, it's essential to ensure that only one output is enabled at a time. This can be achieved by using a mutually exclusive enable signal or by using a bus arbiter circuit.
  • The maximum capacitive load that the SN54LS139AJ can drive is typically around 100-150 pF, but this can vary depending on the specific application and operating conditions.

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SN54LS139AJ 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 SN74LS139AN Texas Instruments

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Part Image 74LS139B NXP Semiconductors

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Part Image SN74LS139AN8 Texas Instruments

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Part Image DV74LS139N avg Semiconductors

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For a full list of alternate parts for SN54LS139AJ, check out Findchips.com