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SN74HCT139PWT - Texas Instruments

Description: Encoders, Decoders, Multiplexers & Demultiplexers Dual 2 to 4-Line Decdr/Demltplxer

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SN74HCT139PWT - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0016A
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SN74HCT139PWT - Texas Instruments  - 3D model - Small Outline Packages - PW0016A
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SN74HCT139PWT Details

  • Manufacturer Part Number:

    SN74HCT139PWT

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Family:

    HCT

  • Input Conditioning:

    STANDARD

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    2-LINE TO 4-LINE DECODER

  • Max I(ol):

    0.0052 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    43 ns

  • Propagation Delay (tpd):

    43 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 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:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    4.4 mm

SN74HCT139PWT Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74HCT139PWT is 40 MHz, but it 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 mismatch, and adding termination resistors as needed. Additionally, consider using a signal integrity analysis tool to simulate and optimize your design.
  • The SN74HCT139PWT is compatible with both 4.5V and 5V systems, but it's recommended to use it within the specified operating voltage range of 4.5V to 5.5V to ensure reliable operation.
  • To handle power sequencing, ensure that the VCC pin is powered up before the input signals, and that the input signals are stable before the clock signal is applied. You can use power sequencing controllers or simple RC circuits to achieve this.
  • The recommended pull-up resistor value for the enable inputs (E1 and E2) is typically in the range of 1 kΩ to 10 kΩ, depending on the specific application and noise environment.

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SN74HCT139PWT 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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