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$3.087
/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$1.256
個 (在毎卷:3000)
單位
LVC - - - - - - - Surface Mount US 8 - - 4.2 ns @ 5 V
RS庫存編號 165-9929
製造零件編號74AUP1G07GW,125
BrandNexperia
HK$0.852
個 (在毎卷:3000)
單位
AUP - - - No Single Ended Open Drain - Surface Mount TSSOP 5 - 4mA 20.7 ns @ 30 pF
RS庫存編號 813-9248
製造零件編號74AUP1G07GW,125
BrandNexperia
HK$2.457
/個 (每包:40個)
單位
AUP - - - No Single Ended Open Drain - Surface Mount TSSOP 5 - 4mA 20.7 ns @ 30 pF
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 528-264
製造零件編號SN74LVC1G125DBVR
HK$1.869
/個 (每包:25個)
單位
LVC - - - - - - - Surface Mount SOT-23 5 -32mA 32mA 4 ns @ 5 V
RS庫存編號 162-9172
製造零件編號NLU2G16MUTCG
HK$1.895
個 (在毎卷:3000)
單位
NLU Buffer - 2 No Single Ended CMOS Non-Inverting Surface Mount UDFN 6 -8mA 8mA 14.5 ns @ 50 pF
RS庫存編號 805-3009
製造零件編號NLU2G16MUTCG
HK$4.389
/個 (每包:25個)
單位
NLU Buffer - 2 No Single Ended CMOS Non-Inverting Surface Mount UDFN 6 -8mA 8mA 14.5 ns @ 50 pF
RS庫存編號 155-9362
製造零件編號LTC4311ISC6#TRMPBF
HK$34.222
個 (在毎卷:500)
單位
LTC - - - - - - - Surface Mount SC-70 6 - - -
RS庫存編號 165-8572
製造零件編號74LVC2G17GW,125
BrandNexperia
HK$0.675
個 (在毎卷:3000)
單位
LVC Buffer - 2 Yes Schmitt Trigger Single Ended Non-Inverting Surface Mount SC-88 6 -32mA 32mA 13.1ns
RS庫存編號 796-8180
製造零件編號SN74AHCT1G125DBVR
HK$2.101
/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 121-8441
製造零件編號SN74LVC1G125DBVR
HK$0.478
個 (在毎卷:3000)
單位
LVC - - - - - - - Surface Mount SOT-23 5 -32mA 32mA 4 ns @ 5 V
RS庫存編號 858-0674
製造零件編號LTC4311ISC6#TRMPBF
HK$42.58
/個 (每包:2個)
單位
LTC - - - - - - - Surface Mount SC-70 6 - - -
RS庫存編號 816-8823
製造零件編號74LVC2G17GW,125
BrandNexperia
HK$1.88
/個 (每包:40個)
單位
LVC Buffer - 2 Yes Schmitt Trigger Single Ended Non-Inverting Surface Mount SC-88 6 -32mA 32mA 13.1ns
RS庫存編號 896-6765
製造零件編號TC7SZ125F,LJ(CT
BrandToshiba
HK$1.082
/個 (每包:100個)
單位
CMOS - - - - - - - Surface Mount SSOP 5 -32mA 32mA 6 ns@ 50 pF
RS庫存編號 169-7215
製造零件編號74AHC125S14-13
HK$1.04
個 (在毎卷:2500)
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AHC Schmitt Trigger Buffer - 4 Yes Schmitt Trigger 3 State Non-Inverting Surface Mount SOIC 14 -4mA 8mA 14.5 ns @ 50 pF
RS庫存編號 171-3499
製造零件編號74LCX126FT
BrandToshiba
HK$2.395
/個 (每包:50個)
單位
74LCX - - - - - - - Surface Mount TSSOP 14 -24mA 24mA 22 ns @ 50 pF
RS庫存編號 166-3736
製造零件編號NC7SP34P5X
HK$0.793
個 (在毎卷:3000)
單位
TinyLogic ULP Buffer - 1 No Power Down High Impedance Power Down High Impedance Non-Inverting Surface Mount SC-70 5 -2.6mA 2.6mA 46.3ns
RS庫存編號 171-3118
製造零件編號TC7SET17F
BrandToshiba
HK$1.575
/個 (每包:50個)
單位
- - - 1 Yes CMOS, Schmitt Trigger CMOS, TTL Non-Inverting Surface Mount SOT-25 5 -8mA 8mA 13.5 ns @ 50 pF
RS庫存編號 806-6137
製造零件編號NC7NZ34L8X
HK$3.791
/個 (每包:20個)
單位
TinyLogic UHS Buffer - 3 No Power Down High Impedance Power Down High Impedance Non-Inverting Surface Mount MicroPak 8 -32mA 32mA 5.1ns