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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Omschrijving Prijs Number of I/O Channels Interface Number of Pins Package Type Clock Frequency Mounting Type Maximum Supply Voltage Minimum Supply Voltage
RS-stocknr. 403-806
FabrikantnummerMCP23017-E/SP
FabrikantMicrochip
1,102 €
Each (In a Pack of 5)
Aantal stuks
16 I2C, Serial MHz 28 SPDIP 5MHz Through Hole - -
RS-stocknr. 144-5723
FabrikantnummerMCP23017-E/SP
FabrikantMicrochip
0,917 €
Each (In a Tube of 15)
Aantal stuks
16 I2C, Serial MHz 28 SPDIP 5MHz Through Hole - -
RS-stocknr. 403-563
FabrikantnummerMCP23008-E/P
FabrikantMicrochip
0,94 €
Each (In a Pack of 5)
Aantal stuks
8 I2C, Serial MHz 18 PDIP 5MHz Through Hole - -
RS-stocknr. 165-4752
FabrikantnummerMCP23008-E/P
FabrikantMicrochip
0,746 €
Each (In a Tube of 25)
Aantal stuks
8 I2C, Serial MHz 18 PDIP 5MHz Through Hole - -
RS-stocknr. 920-3374
FabrikantnummerPCF8574AN
1,03 €
Each (In a Tube of 25)
Aantal stuks
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS-stocknr. 517-0249
FabrikantnummerPCF8574AN
2,21 €
Each
Aantal stuks
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS-stocknr. 103-5690
FabrikantnummerPCA9535D,112
FabrikantNXP
1,229 €
Each (In a Tube of 30)
Aantal stuks
16 I2C, SMBus 24 SOIC 400kHz Surface Mount - -
RS-stocknr. 661-3380
FabrikantnummerPCF8574PWR
1,336 €
Each (In a Pack of 5)
Aantal stuks
- - 20 TSSOP - Surface Mount - -
RS-stocknr. 483-7109
FabrikantnummerPCA9535D,112
FabrikantNXP
1,456 €
Each (In a Pack of 5)
Aantal stuks
16 I2C, SMBus 24 SOIC 400kHz Surface Mount - -
RS-stocknr. 162-5843
FabrikantnummerPCA9535DW
2,07 €
Each (In a Tube of 25)
Aantal stuks
- - 24 SOIC - Surface Mount - -
RS-stocknr. 661-3441
FabrikantnummerPCA9535DW
2,436 €
Each (In a Pack of 5)
Aantal stuks
- - 24 SOIC - Surface Mount - -
RS-stocknr. 661-3371
FabrikantnummerPCA9557PWR
1,302 €
Each (In a Pack of 5)
Aantal stuks
- - 16 TSSOP - Surface Mount - -
RS-stocknr. 162-5477
FabrikantnummerPCA9557PWR
0,609 €
Each (On a Reel of 2000)
Aantal stuks
- - 16 TSSOP - Surface Mount - -
RS-stocknr. 163-0307
FabrikantnummerPCA9535ECDWR2G
FabrikantON Semiconductor
0,895 €
Each (On a Reel of 1000)
Aantal stuks
16 I2C 24 SOIC 1MHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 823-3523
FabrikantnummerMCP23S17-E/SP
FabrikantMicrochip
0,965 €
Each (In a Pack of 10)
Aantal stuks
16 SPI 28 PDIP 10MHz Through Hole 5.5 V 1.8 V
RS-stocknr. 483-7222
FabrikantnummerPCA9555PW,112
FabrikantNXP
1,39 €
Each
Aantal stuks
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 912-6833
FabrikantnummerMCP23S17-E/SP
FabrikantMicrochip
0,965 €
Each (In a Tube of 15)
Aantal stuks
16 SPI 28 PDIP 10MHz Through Hole 5.5 V 1.8 V
RS-stocknr. 124-2356
FabrikantnummerPCA9555PW,112
FabrikantNXP
1,22 €
Each (In a Tube of 63)
Aantal stuks
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 823-4226
FabrikantnummerPCA9535ECDWR2G
FabrikantON Semiconductor
1,552 €
Each (In a Pack of 10)
Aantal stuks
16 I2C 24 SOIC 1MHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 727-5715
FabrikantnummerPCA9555BS,118
FabrikantNXP
1,725 €
Each (In a Pack of 2)
Aantal stuks
16 I2C, SMBus 24 HVQFN 400kHz Surface Mount 5.5 V 2.3 V
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