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 162-8901
Référence fabricantM74VHC1G126DTT1G
0,032 €
Each (On a Reel of 3000)
Unité
VHC Buffer - 1 No Single Ended 3 State Non-Inverting Surface Mount TSOP 5 -8mA 8mA 16 ns @ 50 pF
N° de stock RS 662-9610
Référence fabricantCD4041UBM
0,418 €
Each (In a Pack of 5)
Unité
4000 Buffer - 4 No Single Ended - Inverting, Non-Inverting Surface Mount SOIC 14 - - 120 ns @ 5 V
N° de stock RS 136-4820
Référence fabricantHEF4049BT,653
MarqueNexperia
0,195 €
Each (In a Pack of 100)
Unité
HEF Buffer - 1 - CMOS, DTL, TTL Single Ended Inverting Surface Mount SO 16 -3.6mA 24mA 70 (High to Low) ns, 100 (Low to High) ns @ 50 pF
N° de stock RS 798-9076
Référence fabricant74HCT125T14-13
MarqueDiodesZetex
0,272 €
Each (On a Tape of 25)
Unité
HCT Buffer - 4 No TTL 3 State Non-Inverting Surface Mount TSSOP 14 -4mA 4mA 38 ns @ 50 pF
N° de stock RS 166-2863
Référence fabricantNC7WZ07FHX
0,125 €
Each (On a Reel of 5000)
Unité
TinyLogic UHS Buffer - 2 No Single Ended Open Drain Non-Inverting Surface Mount MicroPak 6 - 32mA 12.6ns
N° de stock RS 162-6736
Référence fabricantSN74LVT16244BDGGR
0,747 €
Each (On a Reel of 2000)
Unité
74LVT Buffer - - No CMOS, TTL 3 State Non-Inverting Surface Mount TSSOP 48 -32mA 64mA 3.2 ns @ 3.3 V
N° de stock RS 827-0301
Référence fabricant74LV07AS14-13
MarqueDiodesZetex
0,236 €
Each (In a Pack of 50)
Unité
74LV Buffer - 6 Yes Schmitt Trigger Open Drain - Surface Mount SOIC 14 - 12mA 8.5 ns @ 50 pF
N° de stock RS 816-8763
Référence fabricant74LVC1G17GV,125
MarqueNexperia
0,167 €
Each (In a Pack of 75)
Unité
LVC Buffer - 1 Yes Schmitt Trigger Single Ended Non-Inverting Surface Mount SC-74A 5 -32mA 32mA 14ns
N° de stock RS 171-3348
Référence fabricant74VHC540FT
MarqueToshiba
0,083 €
Each (On a Reel of 2500)
Unité
74VHC - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 13.5 ns @ 50 pF
N° de stock RS 171-3523
Référence fabricant74VHCT541AFT
MarqueToshiba
0,287 €
Each (In a Pack of 25)
Unité
74VHCT - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 10 ns @ 50 pF
N° de stock RS 169-7477
Référence fabricant74LV07AS14-13
MarqueDiodesZetex
0,08 €
Each (On a Reel of 2500)
Unité
74LV Buffer - 6 Yes Schmitt Trigger Open Drain - Surface Mount SOIC 14 - 12mA 8.5 ns @ 50 pF
N° de stock RS 662-9616
Référence fabricantCD4041UBE
1,098 €
Each (In a Pack of 5)
Unité
4000 Buffer - 4 No Single Ended - Inverting, Non-Inverting Through Hole PDIP 14 - - 120 ns @ 5 V
N° de stock RS 822-8704
Référence fabricant74LVC1G17SE-7
MarqueDiodesZetex
0,063 €
Each (In a Pack of 200)
Unité
74LVC Buffer - 1 Yes Schmitt Trigger Push-Pull Non-Inverting Surface Mount SOT-353 5 -32mA 32mA 14 ns @ 50 pF
N° de stock RS 806-1179
Référence fabricantNC7WZ07FHX
0,132 €
Each (On a Tape of 50)
Unité
TinyLogic UHS Buffer - 2 No Single Ended Open Drain Non-Inverting Surface Mount MicroPak 6 - 32mA 12.6ns
N° de stock RS 145-5276
Référence fabricantMC74VHC1G07DTT1G
0,049 €
Each (On a Reel of 3000)
Unité
VHC Buffer - 1 No Single Ended Open Drain Non-Inverting Surface Mount TSOP 5 - 8mA 14.5 ns @ 50 pF (Enable Time)
N° de stock RS 816-8791
Référence fabricant74LVC1T45GW,125
MarqueNexperia
0,271 €
Each (In a Pack of 10)
Unité
LVC Transceiver - 1 - Single Ended 3 State Non-Inverting Surface Mount SC-88 6 -32mA 32mA 31.8ns
N° de stock RS 171-3126
Référence fabricantTC7SZ125FE
MarqueToshiba
0,036 €
Each (In a Pack of 100)
Unité
- - - - - - - - Surface Mount SOT-553 5 -32mA 32mA 13 ns @ 15 pF
N° de stock RS 171-3015
Référence fabricantTC7SH34F
MarqueToshiba
0,072 €
Each (On a Reel of 3000)
Unité
- Non-Inverting - 1 - CMOS CMOS Non-Inverting Surface Mount SOT-25 5 -32mA 8mA 13.5 ns @ 50 pF
N° de stock RS 662-9496
Référence fabricantCD4009UBM
0,438 €
Each (In a Pack of 5)
Unité
4000 Buffer, Converter - - - Single Ended - Inverting Surface Mount SOIC 16 -1.65mA 30mA 60 ns @ 15 V, 80 ns @ 10 V, 140 ns @ 5 V
N° de stock RS 171-3029
Référence fabricantTC7SZ17F
MarqueToshiba
0,047 €
Each (On a Reel of 3000)
Unité
- - - 1 Yes CMOS, Schmitt Trigger CMOS Non-Inverting Surface Mount SOT-25 5 -32mA 32mA 17.5 ns @ 15 pF