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SN74LS251D - Texas Instruments

Description: Texas Instruments SN74LS251D, Multiplexer Single 8:1, 16-Pin SOIC

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SN74LS251D - Texas Instruments PCB footprint - Other - Other - SOIC127P600X175-16N
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SN74LS251D - Texas Instruments  - 3D model - Other - SOIC127P600X175-16N
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SN74LS251D Details

  • Manufacturer Part Number:

    SN74LS251D

  • 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):

    5 pF

  • Logic IC Type:

    MULTIPLEXER

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Inputs:

    8

  • Number of Outputs:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    COMPLEMENTARY

  • 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):

    10 mA

  • Prop. Delay@Nom-Sup:

    45 ns

  • Propagation Delay (tpd):

    45 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

SN74LS251D Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS251D is 30 MHz, but it can vary depending on the operating voltage and load capacitance.
  • The SN74LS251D requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1 μF to 1 μF between VCC and GND to reduce noise and ensure stable operation.
  • The propagation delay of the SN74LS251D is typically around 10-15 ns, but it can vary depending on the operating voltage, temperature, and load capacitance.
  • No, the SN74LS251D is designed to operate at 5V and is not compatible with 3.3V systems. Using it in a 3.3V system may result in unreliable operation or damage to the device.
  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low (0V) and disabled when OE is high (VCC). Make sure to connect OE to a valid logic level to avoid output contention.

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SN74LS251D 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 HD74LS251RP-EL Hitachi Ltd

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Part Image DM74LS251M Rochester Electronics LLC

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Part Image DM74LS251MX Rochester Electronics LLC

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Part Image SN74LS251DE4 Texas Instruments

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Part Image T74LS251M1 STMicroelectronics

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For a full list of alternate parts for SN74LS251D, check out Findchips.com