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 812-2650
Référence fabricantP82B715P
2,33 €
Each
Unité
P82B - - - - - - - Through Hole PDIP 8 - - -
N° de stock RS 921-2858
Référence fabricantP82B715P
1,981 €
Each (In a Tube of 50)
Unité
P82B - - - - - - - Through Hole PDIP 8 - - -
N° de stock RS 145-0019
Référence fabricantCD74HC4050E
0,356 €
Each (In a Tube of 25)
Unité
HC Buffer, Converter - 6 - Single Ended - Non-Inverting Through Hole PDIP 16 -5.2mA 5.2mA 14 ns @ 6 V, 17 ns @ 4.5 V, 85 ns @ 2 V
N° de stock RS 809-5980
Référence fabricantSN74LVC1G17DRLR
0,237 €
Each (In a Pack of 20)
Unité
LVC Buffer - 1 Yes Single Ended Single Ended Non-Inverting Surface Mount SOT-553 5 -32mA 32mA 11 ns @ 15 pF
N° de stock RS 145-3321
Référence fabricantM74VHC1GT50DFT1G
0,035 €
Each (On a Reel of 3000)
Unité
VHC Buffer - 1 No Single Ended CMOS, Single Ended Non-Inverting Surface Mount SC-88A 5 -8mA 8mA 25.5 ns @ 50 pF
N° de stock RS 805-1558
Référence fabricantM74VHC1GT50DFT1G
0,066 €
Each (On a Tape of 100)
Unité
VHC Buffer - 1 No Single Ended CMOS, Single Ended Non-Inverting Surface Mount SC-88A 5 -8mA 8mA 25.5 ns @ 50 pF
N° de stock RS 805-1560
Référence fabricantM74VHC1GT50DTT1G
0,084 €
Each (In a Pack of 100)
Unité
VHC Buffer - 1 No Single Ended CMOS, Single Ended Non-Inverting Surface Mount TSOP 5 -8mA 8mA 25.5 ns @ 50 pF
N° de stock RS 145-6812
Référence fabricantSN74LVC1G17DRLR
0,072 €
Each (On a Reel of 4000)
Unité
LVC Buffer - 1 Yes Single Ended Single Ended Non-Inverting Surface Mount SOT-553 5 -32mA 32mA 11 ns @ 15 pF
N° de stock RS 805-3080
Référence fabricantNL27WZ126USG
0,055 €
Each (On a Tape of 50)
Unité
NL Buffer - 2 No TTL 3 State Non-Inverting Surface Mount US 8 -32mA 32mA 6 ns @ 50 pF
N° de stock RS 162-9128
Référence fabricantNL27WZ126USG
0,057 €
Each (On a Reel of 3000)
Unité
NL Buffer - 2 No TTL 3 State Non-Inverting Surface Mount US 8 -32mA 32mA 6 ns @ 50 pF
N° de stock RS 796-8180
Référence fabricantSN74AHCT1G125DBVR
0,202 €
Each (In a Pack of 25)
Unité
HCT - - - - - - - Surface Mount SOT-23 5 -8mA 8mA 8.5 ns @ 50 pF
N° de stock RS 162-6651
Référence fabricantSN74AHCT1G125DBVR
0,045 €
Each (On a Reel of 3000)
Unité
HCT - - - - - - - Surface Mount SOT-23 5 -8mA 8mA 8.5 ns @ 50 pF
N° de stock RS 806-3254
Référence fabricantMC14503BDR2G
0,401 €
Each (In a Pack of 20)
Unité
CMOS Buffer - 6 No - 3 State Non-Inverting Surface Mount SOIC 16 19.2mA -8.2mA 200ns
N° de stock RS 483-6960
Référence fabricantP82B96TD,112
MarqueNXP
2,83 €
Each
Unité
LVC - - - - - - - Surface Mount SOIC 8 - - -
N° de stock RS 124-2357
Référence fabricantPCA9600D,112
MarqueNXP
1,698 €
Each (In a Tube of 100)
Unité
CMOS, TTL - - - - - - - Surface Mount SOIC 8 - - -
N° de stock RS 805-6414
Référence fabricantMC74VHCT125ADR2G
0,311 €
Each (On a Tape of 50)
Unité
HCT - - - - - - - Surface Mount SOIC 14 -25mA 25mA 16 ns@ 50 pF
N° de stock RS 805-1536
Référence fabricantM74VHC1GT126DT1G
0,086 €
Each (In a Pack of 100)
Unité
VHC Buffer - 1 No Single Ended CMOS, Single Ended Non-Inverting Surface Mount TSOP 5 -8mA 8mA 16 ns @ 50 pF
N° de stock RS 169-7478
Référence fabricant74LV07AT14-13
MarqueDiodesZetex
0,055 €
Each (On a Reel of 2500)
Unité
74LV Buffer - 6 Yes Schmitt Trigger Open Drain - Surface Mount TSSOP 14 - 12mA 8.5 ns @ 50 pF
N° de stock RS 178-7018
Référence fabricant74LVT125PW,112
MarqueNexperia
0,274 €
Each (In a Tube of 96)
Unité
LVT Buffer, Line Driver - 4 No Single Ended 3 State Non-Inverting Surface Mount TSSOP 14 -32mA 64mA 2.9 ns @ 3.3 V
N° de stock RS 791-6053
Référence fabricantM74VHC1GT126DF1G
0,024 €
Each (On a Tape of 100)
Unité
LSTTL Buffer - 1 No Single Ended Single Ended Non-Inverting Surface Mount SC-70 5 - - 16ns