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

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Description Prix Logic Family Logic Function IC Type Number of Channels Schmitt Trigger Input Input Type Output Type Polarity Mounting Type Package Type Pin Count Maximum High Level Output Current Maximum Low Level Output Current Maximum Propagation Delay Time @ Maximum CL
N° de stock RS 166-3196
Référence fabricant74LCX126MX
0,143 €
Each (On a Reel of 2500)
Unité
74LCX Buffer - 4 No Single Ended 3 State Non-Inverting Surface Mount SOIC 14 -24mA 24mA 6 ns @ 50 pF
N° de stock RS 162-6669
Référence fabricantSN74AUP1T17DCKR
0,08 €
Each (On a Reel of 3000)
Unité
AUP Buffer - 1 Yes Single Ended CMOS Non-Inverting Surface Mount SC-70 5 -4mA 4mA 10 ns @ 30 pF
N° de stock RS 171-3348
Référence fabricant74VHC540FT
MarqueToshiba
0,099 €
Each (On a Reel of 2500)
Unité
74VHC - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 13.5 ns @ 50 pF
N° de stock RS 166-0160
Référence fabricant74LVC14AT14-13
MarqueDiodesZetex
0,088 €
Each (On a Reel of 2500)
Unité
LVC NOT - - - Schmitt Trigger Push-Pull - Surface Mount TSSOP 14 -24mA 24mA 7 ns @ 2.7 V
N° de stock RS 163-0529
Référence fabricantMC14050BDTG
0,113 €
Each (In a Tube of 96)
Unité
CMOS Buffer - 6 No Single Ended - Non-Inverting Surface Mount TSSOP 16 30mA -4.7mA 140ns
N° de stock RS 122-1514
Référence fabricant74AHC125T14-13
MarqueDiodesZetex
0,047 €
Each (On a Reel of 2500)
Unité
AHC Schmitt Trigger Buffer - 4 Yes Schmitt Trigger 3 State Non-Inverting Surface Mount TSSOP 14 -4mA 8mA 14.5 ns @ 50 pF
N° de stock RS 171-3090
Référence fabricantTC7WZ125FK
MarqueToshiba
0,066 €
Each (In a Pack of 50)
Unité
- - - - - - - - Surface Mount SOT-765 8 -32mA 32mA 13 ns @ 15 pF
N° de stock RS 816-8753
Référence fabricant74LVC1G125GV,125
MarqueNexperia
0,094 €
Each (In a Pack of 100)
Unité
LVC Buffer - 1 No Single Ended 3 State Non-Inverting Surface Mount SC-74A 5 -32mA 32mA 10.5ns
N° de stock RS 169-7236
Référence fabricant74HC126S14-13
MarqueDiodesZetex
0,11 €
Each (On a Reel of 2500)
Unité
HC Schmitt Trigger Buffer - 4 Yes Schmitt Trigger 3 State Inverting Surface Mount SOIC 14 -4mA 5.2mA 150 ns @ 50 pF
N° de stock RS 171-3130
Référence fabricantTC7WH17FU
MarqueToshiba
0,16 €
Each (In a Pack of 50)
Unité
- - - 1 Yes CMOS, Schmitt Trigger CMOS Non-Inverting Surface Mount SOT-505 8 -8mA 8mA 17 ns @ 15 pF
N° de stock RS 184-4268
Référence fabricantMC74AC125DG
0,387 €
Each (In a Tube of 55)
Unité
74AC Buffer - 4 Yes Single Ended 3 State Non-Inverting Surface Mount SOIC 14 -24mA 24mA 10 ns @ 50 pF
N° de stock RS 806-3844
Référence fabricantMC74LVX50DTG
0,088 €
Each (In a Pack of 50)
Unité
LVX Buffer - 6 No CMOS CMOS Non-Inverting Surface Mount TSSOP 14 -4mA 4mA 16 ns @ 50 pF
N° de stock RS 162-8904
Référence fabricantM74VHC1GT125DT1G
0,049 €
Each (On a Reel of 3000)
Unité
VHC Buffer - 1 No Single Ended CMOS, Single Ended Non-Inverting Surface Mount TSOP 5 -8mA 8mA 16 ns @ 50 pF
Nouveau
N° de stock RS 218-4608
Référence fabricantSN74LVC1G07DCKR
0,229 €
Each (In a Pack of 50)
Unité
CMOS Buffer - 1 No - - - - SC-70 5 - - -
N° de stock RS 152-7175
Référence fabricant74AXP2T3407GTX
MarqueNexperia
0,265 €
Each (On a Reel of 5000)
Unité
AXP Single Buffer - 1 Yes Open Drain Open Drain - Surface Mount XSON 8 - - -
N° de stock RS 166-3308
Référence fabricantMM74HCT541WMX
0,294 €
Each (On a Reel of 1000)
Unité
74HC - - - - - - - Surface Mount SOIC 20 7.2mA 7.2mA 45 ns @ 150 pF
N° de stock RS 165-8519
Référence fabricant74LVC2G34DW-7
MarqueDiodesZetex
0,077 €
Each (On a Reel of 3000)
Unité
74LVC Buffer, Driver - - No - Push-Pull Non-Inverting Surface Mount SOT-363 6 -32mA 32mA 10.8 ns @ 50 pF
N° de stock RS 171-3457
Référence fabricant74VHCT244AFT
MarqueToshiba
0,272 €
Each (In a Pack of 25)
Unité
74VHCT - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 10.5 ns @ 50 pF
N° de stock RS 122-1517
Référence fabricant74HC125S14-13
MarqueDiodesZetex
0,11 €
Each (On a Reel of 2500)
Unité
HC Schmitt Trigger Buffer - 4 Yes Schmitt Trigger 3 State Non-Inverting Surface Mount SOIC 14 -4mA 5.2mA 150 ns @ 50 pF
N° de stock RS 896-6756
Référence fabricantTC7SH125FU,LJ(CT
MarqueToshiba
0,085 €
Each (In a Pack of 100)
Unité
VHC - - - - - - - Surface Mount SSOP 5 -8mA 8mA 13 ns@ 50 pF