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SN74LS279AD - Texas Instruments

Description: Texas Instruments SN74LS279AD Quad Latch, Transparent SR Type, 4.75 → 5.25 V, 16-Pin SOIC

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SN74LS279AD - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G16)
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SN74LS279AD - Texas Instruments  - 3D model - Small Outline Packages - D (R-PDSO-G16)
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SN74LS279AD Details

  • Manufacturer Part Number:

    SN74LS279AD

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    WITH DUAL S INPUT FOR TWO FUNCTIONS

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    R-S LATCH

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    2

  • Number of Functions:

    4

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    7 mA

  • Prop. Delay@Nom-Sup:

    30 ns

  • Propagation Delay (tpd):

    27 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 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:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Trigger Type:

    LOW LEVEL

  • Width:

    3.9 mm

SN74LS279AD Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS279AD is 25 MHz.
  • The SN74LS279AD requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1 μF to 1 μF between VCC and GND to ensure proper operation.
  • The typical propagation delay of the SN74LS279AD is 10 ns, but it can vary depending on the operating conditions and load capacitance.
  • No, the SN74LS279AD is designed to operate at 5V, and using it in a 3.3V system may not guarantee proper operation or may even damage the device.
  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low (GND) and disabled when OE is high (VCC).

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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 DM74LS279MX Rochester Electronics LLC

R-S Latch, LS Series, 4-Func, Low Level Triggered, 2-Bit, True Output, TTL, PDSO16

Part Image 74LS279SC Fairchild Semiconductor Corporation

R-S Latch, LS Series, 4-Func, Low Level Triggered, 1-Bit, Inverted Output, TTL, PDSO16

Part Image DM74LS279M Texas Instruments

R-S Latch, LS Series, 4-Func, Low Level Triggered, 2-Bit, True Output, TTL, PDSO16

Part Image DM74LS279MX Fairchild Semiconductor Corporation

R-S Latch, LS Series, 4-Func, Low Level Triggered, 2-Bit, True Output, TTL, PDSO16

Part Image SN74LS279ADRE4 Texas Instruments

R-S Latch, LS Series, 4-Func, Low Level Triggered, 2-Bit, True Output, TTL, PDSO16

For a full list of alternate parts for SN74LS279AD, check out Findchips.com