I/O Expanders

I/O expandersare a type of computer hardware that allows more than one device to connect to a single port on a computer.

How do I/O expanders work?

The expander connects to a single spot, but has multiple connections for other devices. Such expanders offer the advantage of allowing more devices of a particular port type to be used at the same time. This commonly used with USBs and ethernet ports.

Types of I/O expanders

There are two main types of I/O expanders: internal and external.

Internal expanders

These have a connection inside the computer, typically on the motherboard, and the only part the user can see is the expansion plate which houses the ports to which they can connect more devices.

External expanders

An external expander plugs into an existing port introducing multiple new places to connect. When not part of a computer system, these devices are commonly known as splitters.


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Beskrivning Pris Number of I/O Channels Interface Number of Pins Package Type Clock Frequency Mounting Type Maximum Supply Voltage Minimum Supply Voltage
RS-artikelnummer 727-5696
Tillv. art.nrPCA9539D,112
VarumärkeNXP
14,89 kr
Each (In a Pack of 2)
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- - - SOIC - Surface Mount - -
RS-artikelnummer 510-780
Tillv. art.nrPCF8574T/3,512
VarumärkeNXP
13,028 kr
Each (In a Pack of 5)
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8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 146-0363
Tillv. art.nrPCA9539D,112
VarumärkeNXP
13,539 kr
Each (In a Tube of 30)
Enheter
- - - SOIC - Surface Mount - -
RS-artikelnummer 124-2365
Tillv. art.nrPCF8574TS/3,112
VarumärkeNXP
12,971 kr
Each (In a Tube of 75)
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8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS-artikelnummer 510-784
Tillv. art.nrPCF8574TS/3,112
VarumärkeNXP
14,27 kr
Each
Enheter
8 - 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS-artikelnummer 124-2364
Tillv. art.nrPCF8574T/3,512
VarumärkeNXP
11,064 kr
Each (In a Tube of 48)
Enheter
8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 103-8074
Tillv. art.nrPCA9518PW,112
VarumärkeNXP
10,045 kr
Each (In a Tube of 75)
Enheter
- - - TSSOP - Surface Mount - -
RS-artikelnummer 797-4728
Tillv. art.nrPCA9555D,118
VarumärkeNXP
14,32 kr
Each (In a Pack of 2)
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16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 103-8075
Tillv. art.nrPCA9535BS,118
VarumärkeNXP
8,008 kr
Each (On a Reel of 6000)
Enheter
- - - HVQFN - Surface Mount - -
RS-artikelnummer 166-0161
Tillv. art.nrPCA9555D,118
VarumärkeNXP
13,021 kr
Each (On a Reel of 1000)
Enheter
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 169-7286
Tillv. art.nrPCA9554DB,112
VarumärkeNXP
8,749 kr
Each (In a Tube of 78)
Enheter
8 I2C, SMBus 16 SSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 103-5691
Tillv. art.nrPCA9554D,112
VarumärkeNXP
11,994 kr
Each (In a Tube of 48)
Enheter
8 I2C, SMBus 16 SOIC 400kHz Surface Mount - -
RS-artikelnummer 273-539
Tillv. art.nrP82B715TD,112
VarumärkeNXP
31,12 kr
Each
Enheter
- I2C, SMBus 8 SOIC 400kHz Surface Mount - -
RS-artikelnummer 483-7109
Tillv. art.nrPCA9535D,112
VarumärkeNXP
15,056 kr
Each (In a Pack of 5)
Enheter
16 I2C, SMBus 24 SOIC 400kHz Surface Mount - -
RS-artikelnummer 510-857
Tillv. art.nrPCA9535PW,112
VarumärkeNXP
16,028 kr
Each (In a Pack of 5)
Enheter
16 - 24 TSSOP 400kHz Surface Mount 5 V, 5.5 V 2.3 V
RS-artikelnummer 727-5715
Tillv. art.nrPCA9555BS,118
VarumärkeNXP
17,835 kr
Each (In a Pack of 2)
Enheter
16 I2C, SMBus 24 HVQFN 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 124-2366
Tillv. art.nrPCF8575TS/1,112
VarumärkeNXP
16,441 kr
Each (In a Tube of 59)
Enheter
16 I2C 24 SSOP 400kHz Surface Mount 5.5 V 2.5 V
RS-artikelnummer 483-7222
Tillv. art.nrPCA9555PW,112
VarumärkeNXP
14,89 kr
Each
Enheter
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 103-5690
Tillv. art.nrPCA9535D,112
VarumärkeNXP
12,708 kr
Each (In a Tube of 30)
Enheter
16 I2C, SMBus 24 SOIC 400kHz Surface Mount - -
RS-artikelnummer 124-2361
Tillv. art.nrPCA9698DGG,512
VarumärkeNXP
20,345 kr
Each (In a Tube of 35)
Enheter
40 I2C, SMBus 56 TSSOP 1MHz Surface Mount 5.5 V 2.3 V