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SN54LS74AJ - Texas Instruments

Description: Texas Instruments SN54LS74AJ, Dual, D Type Flip Flop, TTL, 4.5 → 5.5 V, 14-Pin CDIP

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SN54LS74AJ - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J0014A HEIGHT 5.08
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SN54LS74AJ - Texas Instruments  - 3D model - Ceramic Dual-In-Line Packages - J0014A HEIGHT 5.08
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SN54LS74AJ Details

  • Manufacturer Part Number:

    SN54LS74AJ

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    LS

  • JESD-30 Code:

    R-GDIP-T14

  • JESD-609 Code:

    e0

  • Length:

    19.56 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    D FLIP-FLOP

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.008 A

  • Number of Bits:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    8 mA

  • Prop. Delay@Nom-Sup:

    40 ns

  • Propagation Delay (tpd):

    40 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

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    25 MHz

SN54LS74AJ Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN54LS74AJ is 35 MHz.
  • To ensure proper initialization, connect the preset (PRE) and clear (CLR) inputs to VCC through a 1 kΩ resistor and a 0.01 μF capacitor to ground, respectively.
  • The recommended operating voltage range for the SN54LS74AJ is 4.5 V to 5.5 V.
  • No, the SN54LS74AJ is not recommended for use in 3.3 V systems. It is designed to operate at 5 V.
  • The preset (PRE) and clear (CLR) inputs should be driven asynchronously, and the clock (CLK) input should be low when these inputs are active.

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SN54LS74AJ 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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