Buffer IC | Logic Buffers | Bus Buffers | RS
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    Buffers

    Buffers, also known as logic buffers are semiconductor IC (integrated circuit) that are constructed of two inverters that are back to back providing a basic logic gate that passes its input, unchanged, to its output. Buffer ICs are also available in both inverting and non-inverting.

    How do buffers work?

    The primary purpose of a buffer IC is to regenerate the input, primarily using a strong low and high and also to regenerate weak output from non-restoring logic. They are also used to increase the propagation delay of circuits by driving the large capacitive load.

    Buffers also feature transceivers and drivers that are used to regenerate the input utilising a strong high and a strong low. Buffer gates serve as an amplifier of a weak signal source is cant source a lot of current whilst increasing the current capacity of the signal so as to be able to drive a load.

    Types of buffers

    Buffers are available with a variety of configurations such as variations on the number of channels available, supporting a variety of different inputs and outputs such as CMOS, DTL (Diode-Transistor Logic) and single-ended and providing support for a range of logic families such as HC, HEF and TTL. Buffers are also available in combination with a converter.

    Another type of buffer that is available is Bus buffers. A bus buffer is an IC that connects multiple data sources to a single bus. The open drivers can be selected to be either a logical high, a logical low, or high impedance which allows other buffers to drive the bus. Like buffers, variations of bus buffers are available such as support for different logic families, inputs, outputs as well as the number of pins configured on the IC.

    Bus buffers are used in applications such as TV and video equipment, industrial controls and portable equipment.

    Application

    Buffers have a wide range of  application use such as;

    • Automatic test equipment
    • Board test systems
    • Instrumentation and characterization equipment
    • Semiconductor test systems

    410 Products showing for Buffers

    onsemi
    -
    LCX
    Buffer
    -
    10
    TTL
    3 State
    Non-Inverting
    Surface Mount
    TSSOP
    20
    -24mA
    24mA
    7.5 ns @ 50 pF
    6.6 x 4.5 x 1.05mm
    3.6 V
    Nexperia
    -
    LVC
    Buffer
    -
    2
    Single Ended
    3 State
    Non-Inverting
    Surface Mount
    TSSOP
    8
    -32mA
    32mA
    11.4ns
    3.1 x 3.1 x 0.95mm
    5.5 V
    Texas Instruments
    -
    74AHC
    Buffer, Driver
    Octal Buffer or Driver IC
    8
    Voltage
    3 State
    Non-Inverting
    -
    TSSOP
    20
    -
    -
    -
    -
    -
    Toshiba
    -
    CMOS
    -
    -
    -
    -
    -
    -
    Surface Mount
    SSOP
    5
    -32mA
    32mA
    6 ns@ 50 pF
    2.9 x 1.6 x 1mm
    5.5 V
    DiodesZetex
    Schmitt Trigger Input
    74AHC
    Buffer, Driver
    -
    1
    CMOS, Schmitt Trigger
    3 State
    Non-Inverting
    Surface Mount
    SOT-25
    5
    -8mA
    8mA
    14.5 ns @ 50 pF
    3.1 x 1.7 x 1.3mm
    5.5 V
    Nexperia
    -
    HCT
    Buffer
    -
    1
    Single Ended
    3 State
    Non-Inverting
    Surface Mount
    TSSOP
    5
    -7.8mA
    7.8mA
    150 ns @ 50 pF
    2.25 x 1.35 x 1mm
    5.5 V
    DiodesZetex
    Schmitt Trigger Input
    74AHC
    Buffer, Bus driver
    -
    1
    Schmitt Trigger
    3 State
    Non-Inverting
    Surface Mount
    SOT-353
    5
    -8mA
    8mA
    14.5 ns @ 50 pF
    2.2 x 1.35 x 1mm
    5.5 V
    NXP
    -
    LVC
    -
    -
    -
    -
    -
    -
    Surface Mount
    SOIC
    8
    -
    -
    -
    5 x 4 x 1.45mm
    15 V
    Toshiba
    -
    74HC
    -
    -
    -
    -
    -
    -
    Surface Mount
    SOIC
    20
    -7.8mA
    7.8mA
    165 ns @ 150 pF
    13.1 x 7.5 x 2.25mm
    6 V
    Texas Instruments
    -
    CMOS
    Buffer
    -
    1
    CMOS
    CMOS
    -
    -
    SC-70
    5
    -
    -
    -
    -
    -
    Texas Instruments
    -
    P82B
    -
    -
    -
    -
    -
    -
    Through Hole
    PDIP
    8
    -
    -
    -
    10.16 x 6.6 x 4.57mm
    12 V
    Texas Instruments
    -
    74LS
    Buffer, Driver
    Hex Buffer & Line Driver IC
    5
    TTL
    Open Collector
    Positive
    -
    SSOP
    14
    -
    -
    -
    -
    -
    Texas Instruments
    -
    74LS
    Buffer, Driver
    Hex Buffer & Line Driver IC
    5
    TTL
    Open Collector
    Positive
    -
    SSOP
    14
    -
    -
    -
    -
    -
    Texas Instruments
    -
    HCT
    Buffer, Line Driver
    -
    4
    Single Ended
    3 State
    Non-Inverting
    Through Hole
    PDIP
    14
    -6mA
    6mA
    25 ns @ 4.5 V
    19.3 x 6.35 x 4.57mm
    5.5 V
    DiodesZetex
    Schmitt Trigger Input
    HC
    Schmitt Trigger Buffer
    -
    4
    Schmitt Trigger
    3 State
    Inverting
    Surface Mount
    SOIC
    14
    -4mA
    5.2mA
    150 ns @ 50 pF
    8.74 x 3.99 x 1.48mm
    6 V
    Texas Instruments
    -
    AHC
    -
    -
    -
    -
    -
    -
    Surface Mount
    SOT-23
    5
    -8mA
    8mA
    11.5 ns @ 3.3 V
    2.9 x 1.6 x 1.15mm
    5.5 V
    Nexperia
    Schmitt Trigger Input
    LVC
    Buffer
    -
    1
    Schmitt Trigger
    Single Ended
    Non-Inverting
    Surface Mount
    SC-74A
    5
    -32mA
    32mA
    14ns
    3.1 x 1.7 x 1mm
    5.5 V
    Texas Instruments
    -
    4000
    Buffer
    -
    4
    Single Ended
    -
    Inverting, Non-Inverting
    Through Hole
    PDIP
    14
    -
    -
    120 ns @ 5 V
    19.3 x 6.35 x 4.57mm
    18 V
    Texas Instruments
    -
    74LVC
    Buffer
    Quadruple Bus Buffer Gate IC
    4
    CMOS
    3 State
    -
    -
    TSSOP
    14
    -
    -
    -
    -
    -
    Toshiba
    -
    74VHC
    -
    -
    -
    -
    -
    -
    Surface Mount
    TSSOP
    14
    -8mA
    8mA
    14.5 ns @ 50 pF
    5 x 4.4 x 1mm
    5.5 V
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