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SN74LS181NE4 - Texas Instruments

Description: Arithmetic Logic Unit - ALU Arith Logic Unit/ Function Generator

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SN74LS181NE4 - Texas Instruments - PCB symbol
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SN74LS181NE4 - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T**)
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SN74LS181NE4 - Texas Instruments - 3D model - Dual-In-Line Packages - N (R-PDIP-T**)
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SN74LS181NE4 Details

  • Manufacturer Part Number:

    SN74LS181NE4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    ROHS COMPLIANT, PLASTIC, DIP-24

  • Pin Count:

    24

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    CAPABLE OF 16 LOGIC & ARITHMETIC OPERATIONS; INTERNAL CARRY AND HIGHER ORDER LOOKAHEAD

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T24

  • JESD-609 Code:

    e4

  • Length:

    31.75 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    ARITHMETIC LOGIC UNIT

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP24,.6

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    37 mA

  • Propagation Delay (tpd):

    62 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

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    15.24 mm

SN74LS181NE4 Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS181NE4 is 25 MHz, but it can vary depending on the specific application and operating conditions.
  • The asynchronous clear input (CLR) should be tied to VCC or GND through a pull-up or pull-down resistor, respectively, to ensure proper operation. It's also recommended to use a debouncing circuit to prevent multiple clears from occurring due to noise or switching transients.
  • A simple POR circuit can be implemented using a resistor, capacitor, and diode connected to the VCC pin. This ensures that the device is properly reset during power-up and minimizes the risk of latch-up or incorrect operation.
  • It's essential to ensure that the device operates within its recommended voltage range (4.75 V to 5.25 V), temperature range (-40°C to 85°C), and current limits (Icc). Additionally, proper PCB design, layout, and thermal management are crucial to prevent overheating and ensure reliable operation.
  • When using the SN74LS181NE4 in a system with multiple voltage domains, it's essential to ensure that the device is powered from a single voltage domain and that the input signals are properly level-shifted or translated to prevent damage or incorrect operation.

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SN74LS181NE4 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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