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 171-3122
製造零件編號TC7WH17FK
BrandToshiba
HK$1.963
/個 (每包:50個)
單位
- - - 1 Yes CMOS, Schmitt Trigger CMOS Non-Inverting Surface Mount SOT-765 8 -8mA 8mA 17 ns @ 15 pF
RS庫存編號 171-3130
製造零件編號TC7WH17FU
BrandToshiba
HK$1.119
/個 (每包:50個)
單位
- - - 1 Yes CMOS, Schmitt Trigger CMOS Non-Inverting Surface Mount SOT-505 8 -8mA 8mA 17 ns @ 15 pF
RS庫存編號 171-3175
製造零件編號TC7SH126F
BrandToshiba
HK$0.432
/個 (每包:100個)
單位
- - - - - - - - Surface Mount SOT-25 5 -8mA 8mA 14.5 ns @ 50 pF
RS庫存編號 171-3023
製造零件編號TC7SZ07FE
BrandToshiba
HK$0.692
個 (在毎卷:4000)
單位
- - - 1 - - - Non-Inverting Surface Mount SOT-553 5 -32mA 32mA 12 ns @ 50 pF
RS庫存編號 171-3126
製造零件編號TC7SZ125FE
BrandToshiba
HK$1.301
/個 (每包:100個)
單位
- - - - - - - - Surface Mount SOT-553 5 -32mA 32mA 13 ns @ 15 pF
RS庫存編號 171-3144
製造零件編號TC7SZ126FE
BrandToshiba
HK$0.556
/個 (每包:100個)
單位
- - - - - - - - Surface Mount SOT-553 5 -32mA 32mA 13 ns @ 15 pF
RS庫存編號 171-3024
製造零件編號TC7SZ125FE
BrandToshiba
HK$0.595
個 (在毎卷:4000)
單位
- - - - - - - - Surface Mount SOT-553 5 -32mA 32mA 13 ns @ 15 pF
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 171-3140
製造零件編號TC7WZ17FU
BrandToshiba
HK$1.963
/個 (每包:50個)
單位
- - - 1 Yes CMOS, Schmitt Trigger CMOS Non-Inverting Surface Mount SOT-505 8 -32mA 32mA 15.6 ns @ 15 pF
RS庫存編號 171-3132
製造零件編號TC7SET34F
BrandToshiba
HK$1.575
/個 (每包:50個)
單位
- Non-Inverting - 1 - CMOS CMOS, TTL Non-Inverting Surface Mount SOT-25 5 -8mA 8mA 13.5 ns @ 50 pF
RS庫存編號 171-3033
製造零件編號TC7SZ34FE
BrandToshiba
HK$0.621
個 (在毎卷:4000)
單位
- Non-Inverting - 1 - CMOS CMOS Non-Inverting Surface Mount SOT-553 5 -32mA 32mA 11 ns @ 15 pF
RS庫存編號 171-3560
製造零件編號74VHCT126AFT
BrandToshiba
HK$2.541
/個 (每包:50個)
單位
74VHCT - - - - - - - Surface Mount TSSOP 14 -8mA 8mA 9.5 ns @ 50 pF
RS庫存編號 171-3513
製造零件編號74VHC244FT
BrandToshiba
HK$2.831
/個 (每包:25個)
單位
74VHC - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 15 ns @ 50 pF
RS庫存編號 171-3294
製造零件編號74LCX244FT
BrandToshiba
HK$2.804
個 (在毎卷:2500)
單位
74LCX - - - - - - - Surface Mount TSSOP 20 -24mA 24mA 25 ns @ 50 pF
RS庫存編號 171-3315
製造零件編號74VHC125FT
BrandToshiba
HK$0.872
個 (在毎卷:2500)
單位
74VHC - - - - - - - Surface Mount TSSOP 14 -8mA 8mA 14.5 ns @ 50 pF
RS庫存編號 171-3124
製造零件編號TC7SZ34FU
BrandToshiba
HK$0.41
/個 (每包:100個)
單位
- Non-Inverting - 1 - CMOS CMOS Non-Inverting Surface Mount SOT-353 5 -32mA 32mA 11 ns @ 15 pF
RS庫存編號 896-6747
製造零件編號TC7SH125F,LJ(CT
BrandToshiba
HK$2.142
/個 (每包:50個)
單位
VHC - - - - - - - Surface Mount SSOP 5 -8mA 8mA 13 ns@ 50 pF
RS庫存編號 171-3295
製造零件編號74LCX245FT
BrandToshiba
HK$1.641
個 (在毎卷:2500)
單位
74LCX - - - - - - - Surface Mount TSSOP 20 -24mA 24mA 25 ns @ 50 pF
RS庫存編號 171-3362
製造零件編號74VHCT240AFT
BrandToshiba
HK$1.086
個 (在毎卷:2500)
單位
74VHCT - - - - - - - Surface Mount TSSOP 20 -8mA 8mA 11 ns @ 50 pF
RS庫存編號 171-3359
製造零件編號74VHCT126AFT
BrandToshiba
HK$0.872
個 (在毎卷:2500)
單位
74VHCT - - - - - - - Surface Mount TSSOP 14 -8mA 8mA 9.5 ns @ 50 pF