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SN74LS139AN - Texas Instruments

Description: Dual 2-line to 4-line decoders / demultiplexers

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SN74LS139AN - Texas Instruments - PCB symbol
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PCB Footprints
SN74LS139AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T16)
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SN74LS139AN - Texas Instruments - 3D model - Dual-In-Line Packages - N (R-PDIP-T16)
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SN74LS139AN Details

  • Manufacturer Part Number:

    SN74LS139AN

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia, Mexico

  • 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-PDIP-T16

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    2-LINE TO 4-LINE DECODER

  • Max I(ol):

    0.008 A

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    11 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):

    5.25 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

SN74LS139AN Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the SN74LS139AN is typically around 30-40 MHz, but this 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 ensuring good airflow around the device. Additionally, the device should be operated within its recommended operating temperature range of 0°C to 70°C.
  • The recommended power-on sequence for the SN74LS139AN is to apply power to the VCC pin before applying any input signals. This helps to prevent unwanted latch-up or oscillation during power-up.
  • To handle bus contention when using the SN74LS139AN as a decoder, it's essential to ensure that only one device is driving the bus at a time. This can be achieved by using tri-state buffers or by implementing a bus arbitration scheme to prevent multiple devices from driving the bus simultaneously.
  • The maximum capacitive load that the SN74LS139AN can drive is typically around 100-150 pF, but this can vary depending on the specific application and operating conditions. It's essential to ensure that the capacitive load is within the recommended range to prevent signal degradation or oscillation.

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SN74LS139AN 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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SN74LS139AN Alternates

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Part Image SN74LS139N Rochester Electronics LLC

2-LINE TO 4-LINE DECODER, LS Series, Inverted Output, TTL, PDIP16
Part Image 74LS139B NXP Semiconductors

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Part Image DM74LS139N Texas Instruments

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Part Image SN74LS139JD Motorola Semiconductor Products

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Part Image DV74LS139N avg Semiconductors

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For a full list of alternate parts for SN74LS139AN, check out Findchips.com