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 Price 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
RS庫存編號 796-8265
製造零件編號SN74LVC2G125DCUR
HK$3.854
/個 (每包:10個)
單位
LVC - - - - - - - Surface Mount US 8 - - 4.2 ns@ 5 V
RS庫存編號 162-6725
製造零件編號SN74LVC2G125DCUR
HK$1.281
個 (在毎卷:3000)
單位
LVC - - - - - - - Surface Mount US 8 - - 4.2 ns @ 5 V
RS庫存編號 528-264
製造零件編號SN74LVC1G125DBVR
HK$1.974
/個 (每包:25個)
單位
LVC - - - - - - - Surface Mount SOT-23 5 -32mA 32mA 4 ns @ 5 V
RS庫存編號 121-8441
製造零件編號SN74LVC1G125DBVR
HK$0.618
個 (在毎卷:3000)
單位
LVC - - - - - - - Surface Mount SOT-23 5 -32mA 32mA 4 ns @ 5 V
RS庫存編號 162-6651
製造零件編號SN74AHCT1G125DBVR
HK$0.527
個 (在毎卷:3000)
單位
HCT - - - - - - - Surface Mount SOT-23 5 -8mA 8mA 8.5 ns @ 50 pF
RS庫存編號 796-8180
製造零件編號SN74AHCT1G125DBVR
HK$2.226
/個 (每包:25個)
單位
HCT - - - - - - - Surface Mount SOT-23 5 -8mA 8mA 8.5 ns @ 50 pF
RS庫存編號 807-2369
製造零件編號CD4050BDW
HK$4.473
/個 (每包:40個)
單位
4050 Buffer, Converter - 6 - CMOS, Single Ended DTL, TTL Non-Inverting Surface Mount SOIC 16 -8mA 48mA 140 ns@ 50 pF
RS庫存編號 145-0418
製造零件編號CD4041UBM
HK$9.886
毎管:50 個
單位
4000 Buffer - 4 No Single Ended - Inverting, Non-Inverting Surface Mount SOIC 14 - - 120 ns @ 5 V
RS庫存編號 662-8266
製造零件編號SN74HCT125DR
HK$3.418
/個 (每包:10個)
單位
HCT Buffer, Line Driver Buffer & Line Driver - - Single Ended 3 State Non-Inverting Surface Mount SOIC 14 -6mA 6mA 36 ns @ 4.5 V
RS庫存編號 922-2861
製造零件編號SN74LVC2G17DBVT
HK$6.867
個 (在毎卷:250)
單位
LVC Schmitt Trigger Buffer - 2 Yes Single Ended - Non-Inverting Surface Mount SOT-23 6 -32mA 32mA 5.4 ns @ 3.3 V
RS庫存編號 809-5980
製造零件編號SN74LVC1G17DRLR
HK$2.909
/個 (每包:20個)
單位
LVC Buffer - 1 Yes Single Ended Single Ended Non-Inverting Surface Mount SOT-553 5 -32mA 32mA 11 ns @ 15 pF
RS庫存編號 179-2051
製造零件編號SN74ABT126D
HK$7.147
毎管:50 個
單位
ABT - - - - - - - Surface Mount SOIC 14 -32mA 64mA 5.1 ns @ 5 V
RS庫存編號 662-8742
製造零件編號SN74LVC1G17DCKT
HK$6.92
/個 (每包:5個)
單位
LVC Schmitt Trigger Buffer - 1 Yes Single Ended - Non-Inverting Surface Mount SC-70 5 -32mA 32mA 5 ns @ 5 V
RS庫存編號 812-2662
製造零件編號P82B96P
HK$33.52
單位
P82B96 - - - - - - - Through Hole PDIP 8 - 3mA 270ns
RS庫存編號 662-8944
製造零件編號SN74LVC2G17DBVT
HK$9.796
/個 (每包:5個)
單位
LVC Schmitt Trigger Buffer - 2 Yes Single Ended - Non-Inverting Surface Mount SOT-23 6 -32mA 32mA 5.4 ns @ 3.3 V
RS庫存編號 809-6169
製造零件編號CD4010BPW
HK$2.504
/個 (每包:15個)
單位
4000 Buffer, Converter - - - Single Ended Single Ended Non-Inverting Surface Mount TSSOP 16 -1.65mA 40mA 200 ns@ 50 pF
RS庫存編號 162-6704
製造零件編號SN74LVC1G126DBVR
HK$0.447
個 (在毎卷:3000)
單位
74LVC Buffer - 1 No CMOS, TTL 3 State Non-Inverting Surface Mount SOT-23 5 -32mA 32mA 4.2 ns @ 5 V
全新
RS庫存編號 218-4596
製造零件編號SN74LV1T34DBVR
HK$3.708
/個 (每包:25個)
單位
CMOS Buffer - 1 No CMOS CMOS - - SOT-23 5 - - -
RS庫存編號 162-9857
製造零件編號SN74AUP1G125DCKT
HK$3.389
個 (在毎卷:250)
單位
74AUP Buffer - 1 No CMOS 3 State Inverting, Non-Inverting Surface Mount SC-70 5 -4mA 4mA 21.4 ns @ 30 pF
RS庫存編號 662-9045
製造零件編號SN74LVC3G17DCTR
HK$5.482
/個 (每包:5個)
單位
LVC Schmitt Trigger Buffer - 3 Yes Single Ended - Non-Inverting Surface Mount SSOP 8 -32mA 32mA 5.4 ns @ 3.3 V