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SN74LS157D - Texas Instruments

Description: Texas Instruments SN74LS157D, Multiplexer Quad 2:1, 16-Pin SOIC

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SN74LS157D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - 16 Ld SOIC
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SN74LS157D - Texas Instruments  - 3D model - Small Outline Packages - 16 Ld SOIC
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SN74LS157D Details

  • Manufacturer Part Number:

    SN74LS157D

  • 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

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    MULTIPLEXER

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    4

  • Number of Inputs:

    2

  • Number of Outputs:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    OPEN-EMITTER

  • 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):

    16 mA

  • Prop. Delay@Nom-Sup:

    14 ns

  • Propagation Delay (tpd):

    14 ns

  • Qualification Status:

    Not Qualified

  • 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

  • Width:

    3.9 mm

SN74LS157D Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the SN74LS157D is typically around 30-40 MHz, but this can vary depending on the specific application and operating conditions.
  • To ensure proper operation, the SN74LS157D should be powered from a stable 5V supply, and decoupling capacitors (e.g. 0.1uF) should be placed as close as possible to the device's power pins to filter out noise and reduce electromagnetic interference (EMI).
  • The SN74LS157D can sink or source up to 16mA of current per output, but this should be limited to 8mA per output to ensure reliable operation and prevent overheating.
  • When not in use, the enable inputs (E1 and E2) should be tied to a logic level (either GND or VCC) to prevent floating inputs and ensure proper operation.
  • No, the SN74LS157D is designed to operate from a 5V supply voltage, and using a 3.3V supply voltage may not guarantee proper operation or reliability.

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SN74LS157D 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 HD74LS157RP-EL Hitachi Ltd

Multiplexer, LS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16

Part Image DM74LS157M Rochester Electronics LLC

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Part Image SN74LS157D onsemi

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Part Image DM74LS157MX Fairchild Semiconductor Corporation

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Part Image DM74LS157M Fairchild Semiconductor Corporation

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For a full list of alternate parts for SN74LS157D, check out Findchips.com