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 816-8791
製造零件編號74LVC1T45GW,125
BrandNexperia
TWD10.60
/個 (每包:10個)
單位
LVC Transceiver - 1 - Single Ended 3 State Non-Inverting Surface Mount SC-88 6 -32mA 32mA 31.8ns
RS庫存編號 165-8503
製造零件編號74LVC1T45GW,125
BrandNexperia
TWD3.80
個 (在毎卷:3000)
單位
LVC Transceiver - 1 - Single Ended 3 State Non-Inverting Surface Mount SC-88 6 -32mA 32mA 31.8ns
RS庫存編號 816-8772
製造零件編號74LVC1G17GW,125
BrandNexperia
TWD5.50
/個 (每包:75個)
單位
LVC Buffer - 1 Yes Schmitt Trigger Single Ended Non-Inverting Surface Mount TSSOP 5 -32mA 32mA 14ns
RS庫存編號 103-5687
製造零件編號74HC7541D,112
BrandNexperia
TWD43.80
毎管:38 個
單位
HC Buffer, Line Driver - 8 Yes Single Ended 3 State Non-Inverting Surface Mount SOIC 20 -7.8mA 7.8mA 120 ns @ 2 V
RS庫存編號 483-6689
製造零件編號74HC7541D,112
BrandNexperia
TWD51.20
/個 (每包:5個)
單位
HC Buffer, Line Driver - 8 Yes Single Ended 3 State Non-Inverting Surface Mount SOIC 20 -7.8mA 7.8mA 120 ns @ 2 V
RS庫存編號 103-8140
製造零件編號74LVC1G17GW,125
BrandNexperia
TWD1.00
個 (在毎卷:3000)
單位
LVC Buffer - 1 Yes Schmitt Trigger Single Ended Non-Inverting Surface Mount TSSOP 5 -32mA 32mA 14ns
RS庫存編號 178-7018
製造零件編號74LVT125PW,112
BrandNexperia
TWD13.30
毎管:96 個
單位
LVT Buffer, Line Driver - 4 No Single Ended 3 State Non-Inverting Surface Mount TSSOP 14 -32mA 64mA 2.9 ns @ 3.3 V
RS庫存編號 165-9929
製造零件編號74AUP1G07GW,125
BrandNexperia
TWD2.80
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 816-8810
製造零件編號74LVC2G125DP,125
BrandNexperia
TWD14.20
/個 (每包:30個)
單位
LVC Buffer - 2 No Single Ended 3 State Non-Inverting Surface Mount TSSOP 8 -32mA 32mA 11.4ns
RS庫存編號 153-2947
製造零件編號74HCT3G07DP-Q100H
BrandNexperia
TWD18.40
/個 (每包:25個)
單位
74HCT Buffer - 3 - TTL Open Drain Non-Inverting Surface Mount TSSOP 8 - 4mA 32 ns @ 50 pF
RS庫存編號 152-7175
製造零件編號74AXP2T3407GTX
BrandNexperia
TWD9.60
個 (在毎卷:5000)
單位
AXP Single Buffer - 1 Yes Open Drain Open Drain - Surface Mount XSON 8 - - -
RS庫存編號 816-8741
製造零件編號74LVC1G07GV,125
BrandNexperia
TWD2.90
/個 (每包:100個)
單位
LVC Buffer - 1 No Single Ended Open Drain Non-Inverting Surface Mount SC-74A 5 - 32mA 8.4ns
RS庫存編號 816-8832
製造零件編號74LVC2G34GW,125
BrandNexperia
TWD7.50
/個 (每包:40個)
單位
LVC Buffer - 2 No Single Ended Single Ended Inverting Surface Mount SC-88 6 -32mA 32mA 10.8ns
RS庫存編號 136-4820
製造零件編號HEF4049BT,653
BrandNexperia
TWD8.10
/個 (每包:100個)
單位
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
RS庫存編號 153-0687
製造零件編號74AXP2T3407GTX
BrandNexperia
TWD22.10
/個 (每包:10個)
單位
AXP Single Buffer - 1 Yes Open Drain Open Drain - Surface Mount XSON 8 - - -
RS庫存編號 165-8589
製造零件編號74LVC1G125GV,125
BrandNexperia
TWD1.60
個 (在毎卷:3000)
單位
LVC Buffer - 1 No Single Ended 3 State Non-Inverting Surface Mount SC-74A 5 -32mA 32mA 10.5ns
RS庫存編號 813-9248
製造零件編號74AUP1G07GW,125
BrandNexperia
TWD9.30
/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 816-8823
製造零件編號74LVC2G17GW,125
BrandNexperia
TWD9.00
/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 153-2836
製造零件編號74LVC2G07GW-Q100H
BrandNexperia
TWD3.40
個 (在毎卷:3000)
單位
74LVC Buffer - 2 Yes Schmitt Trigger Open Drain Non-Inverting Surface Mount SC-88 6 - 32mA 8.4 ns @ 50 pF
RS庫存編號 152-6475
製造零件編號74LVC1G17GW-Q100,1
BrandNexperia
TWD1.30
個 (在毎卷:3000)
單位
74LVC Schmitt Trigger Buffer - 1 Yes Schmitt Trigger CMOS - Surface Mount TSSOP 5 -32mA -32mA -