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SN74LS74ADBR - Texas Instruments

Description: Flip Flops Dual Pos-Edge-Trig D-Type Flip-Flop

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SN74LS74ADBR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB (R-PDSO-G14)
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SN74LS74ADBR - Texas Instruments  - 3D model - Small Outline Packages - DB (R-PDSO-G14)
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SN74LS74ADBR Details

  • Manufacturer Part Number:

    SN74LS74ADBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    14

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    6.2 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    D FLIP-FLOP

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • 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:

    2 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    5.3 mm

  • fmax-Min:

    35 MHz

SN74LS74ADBR Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS74ADBR is typically 35 MHz, but it can vary depending on the specific application and operating conditions.
  • To ensure proper reset during power-up, connect the preset (PRE) and clear (CLR) inputs to VCC through a 1-kΩ resistor and a 0.01-μF capacitor to ground, respectively. This will ensure that the flip-flop is reset to a known state during power-up.
  • The recommended operating voltage range for the SN74LS74ADBR is 4.75 V to 5.25 V, with a typical operating voltage of 5 V.
  • The asynchronous preset (PRE) and clear (CLR) inputs should be driven by a signal that is synchronized with the clock signal to avoid metastability issues. It's recommended to use a synchronous preset or clear signal, or to use a synchronizer circuit to synchronize the preset or clear signal with the clock signal.
  • The propagation delay time for the SN74LS74ADBR is typically around 10 ns to 15 ns, depending on the operating voltage and temperature.

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SN74LS74ADBR 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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