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SN74LS251N - Texas Instruments

Description: Encoders, Decoders, Multiplexers & Demultiplexers 8 to 1

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SN74LS251N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T)+
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SN74LS251N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T)+
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SN74LS251N Details

  • Manufacturer Part Number:

    SN74LS251N

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • 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-T16

  • JESD-609 Code:

    e4

  • Length:

    19.3 mm

  • Load Capacitance (CL):

    5 pF

  • Logic IC Type:

    MULTIPLEXER

  • Max I(ol):

    0.008 A

  • 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:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    12 mA

  • Prop. Delay@Nom-Sup:

    45 ns

  • Propagation Delay (tpd):

    45 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

  • Width:

    6.35 mm

SN74LS251N Frequently Asked Questions (FAQs)

  • The SN74LS251N can handle clock frequencies up to 25 MHz.
  • The SN74LS251N requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to reduce noise and ensure stable operation.
  • The propagation delay of the SN74LS251N is typically around 10-15 ns, but this can vary depending on the specific application and operating conditions.
  • No, the SN74LS251N 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 (connected to GND) and disabled when OE is high (connected to VCC).

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SN74LS251N 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 SN74LS251N Rochester Electronics LLC

Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PDIP16

Part Image DM74LS251N Rochester Electronics LLC

Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PDIP16

Part Image DM74LS251N Fairchild Semiconductor Corporation

Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PDIP16

Part Image SN74LS251N AMD

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Part Image 5962-01-030-7991 AMD

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For a full list of alternate parts for SN74LS251N, check out Findchips.com