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SN74AHCT138NSR - Texas Instruments

Description: 3-Line to 8-Line Decoder / Demultiplexer

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SN74AHCT138NSR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - NS (R-PDSO-G16)
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SN74AHCT138NSR - Texas Instruments  - 3D model - Small Outline Packages - NS (R-PDSO-G16)
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SN74AHCT138NSR Details

  • Manufacturer Part Number:

    SN74AHCT138NSR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    3 ENABLE INPUTS

  • Family:

    AHCT/VHCT/VT

  • Input Conditioning:

    STANDARD

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.2 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    3-LINE TO 8-LINE DECODER

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.04 mA

  • Prop. Delay@Nom-Sup:

    12 ns

  • Propagation Delay (tpd):

    13 ns

  • Qualification Status:

    Not Qualified

  • 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:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

SN74AHCT138NSR Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74AHCT138NSR is 100 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.
  • Yes, the SN74AHCT138NSR can be used in a 3.3V system, but the output voltage will be limited to 3.3V. This may affect the noise margin and signal integrity, especially if the device is driving a load. Additionally, the power consumption will be lower compared to a 5V system.
  • When the enable inputs (E1, E2, E3) are not used, they should be tied to a logic high (VCC) to ensure that the device is enabled. Leaving them floating can cause unpredictable behavior and increased power consumption.
  • A simple POR circuit can be implemented using a resistor, capacitor, and diode. The capacitor should be connected between VCC and GND, and the resistor and diode should be connected in series between VCC and the reset pin. The values of the components will depend on the specific application and requirements.

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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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