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SN74LS74AN - Texas Instruments

Description: Dual D-type pos.-edge-triggered flip-flops with preset and clear

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SN74LS74AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - n(r-pdip-t)_1
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SN74LS74AN - Texas Instruments  - 3D model - Dual-In-Line Packages - n(r-pdip-t)_1
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SN74LS74AN Details

  • Manufacturer Part Number:

    SN74LS74AN

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    14

  • Country Of Origin:

    Malaysia, Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T14

  • JESD-609 Code:

    e4

  • Length:

    19.305 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:

    70 °C

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • 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):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

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

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    35 MHz

SN74LS74AN Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS74AN is typically 25 MHz, but it can vary depending on the specific application and operating conditions.
  • To ensure proper reset during power-up, connect the CLR (clear) input to a pull-up resistor and a capacitor to ground. This will ensure that the flip-flop is reset when power is applied.
  • The recommended operating voltage range for the SN74LS74AN is 4.75V to 5.25V, with a typical operating voltage of 5V.
  • To interface the SN74LS74AN with a microcontroller, connect the clock input (CLK) to a digital output pin on the microcontroller, and the data input (D) to a digital output pin on the microcontroller. Use the microcontroller to generate the clock signal and provide the data input.
  • The propagation delay of the SN74LS74AN is typically around 10-15 ns, but this can vary depending on the specific application and operating conditions.

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SN74LS74AN 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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Part Image N74LS74AN Signetics

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For a full list of alternate parts for SN74LS74AN, check out Findchips.com