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. 124-2361
FabrikantnummerPCA9698DGG,512
FabrikantNXP
€ 3,623
Each (In a Tube of 35)
Aantal stuks
40 I2C, SMBus 56 TSSOP 1MHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 511-068
FabrikantnummerPCA9698DGG,512
FabrikantNXP
€ 4,26
Each
Aantal stuks
40 I2C, SMBus 56 TSSOP 1MHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 510-780
FabrikantnummerPCF8574T/3,512
FabrikantNXP
€ 1,234
Each (In a Pack of 5)
Aantal stuks
8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 124-2364
FabrikantnummerPCF8574T/3,512
FabrikantNXP
€ 1,05
Each (In a Tube of 48)
Aantal stuks
8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 483-7222
FabrikantnummerPCA9555PW,112
FabrikantNXP
€ 1,43
Each
Aantal stuks
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 124-2356
FabrikantnummerPCA9555PW,112
FabrikantNXP
€ 1,211
Each (In a Tube of 63)
Aantal stuks
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 166-1598
FabrikantnummerPCA9536DP,118
FabrikantNXP
€ 0,439
Each (On a Reel of 2500)
Aantal stuks
4 I2C, SMBus 8 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 510-784
FabrikantnummerPCF8574TS/3,112
FabrikantNXP
€ 1,20
Each
Aantal stuks
8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS-stocknr. 510-914
FabrikantnummerPCA9536DP,118
FabrikantNXP
€ 0,922
Each (In a Pack of 5)
Aantal stuks
4 I2C, SMBus 8 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 124-2365
FabrikantnummerPCF8574TS/3,112
FabrikantNXP
€ 1,199
Each (In a Tube of 75)
Aantal stuks
8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS-stocknr. 124-2366
FabrikantnummerPCF8575TS/1,112
FabrikantNXP
€ 1,495
Each (In a Tube of 59)
Aantal stuks
16 I2C 24 SSOP 400kHz Surface Mount 5.5 V 2.5 V
RS-stocknr. 166-0319
FabrikantnummerPCA9539BS,118
FabrikantNXP
€ 0,822
Each (On a Reel of 6000)
Aantal stuks
- I2C, SMBus - HVQFN - Surface Mount - -
RS-stocknr. 103-5691
FabrikantnummerPCA9554D,112
FabrikantNXP
€ 1,047
Each (In a Tube of 48)
Aantal stuks
8 I2C, SMBus 16 SOIC 400kHz Surface Mount - -
RS-stocknr. 483-7171
FabrikantnummerPCA9554D,112
FabrikantNXP
€ 1,266
Each (In a Pack of 5)
Aantal stuks
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 727-5692
FabrikantnummerPCA9539BS,118
FabrikantNXP
€ 1,675
Each (In a Pack of 2)
Aantal stuks
- I2C, SMBus - HVQFN - Surface Mount - -
RS-stocknr. 124-2337
FabrikantnummerP82B715TD,112
FabrikantNXP
€ 2,083
Each (In a Tube of 100)
Aantal stuks
- I2C, SMBus 8 SOIC 400kHz Surface Mount - -
RS-stocknr. 436-8344
FabrikantnummerPCF8575TS/1,112
FabrikantNXP
€ 1,76
Each
Aantal stuks
16 I2C 24 SSOP 400kHz Surface Mount 5.5 V 2.5 V
RS-stocknr. 273-539
FabrikantnummerP82B715TD,112
FabrikantNXP
€ 2,97
Each
Aantal stuks
- I2C, SMBus 8 SOIC 400kHz Surface Mount - -
RS-stocknr. 103-8077
FabrikantnummerPCA9554ABS,118
FabrikantNXP
€ 0,608
Each (On a Reel of 6000)
Aantal stuks
- I2C, SMBus - HVQFN - Surface Mount - -
RS-stocknr. 103-5692
FabrikantnummerPCA9554PW,112
FabrikantNXP
€ 1,121
Each (In a Tube of 96)
Aantal stuks
- I2C, SMBus 16 TSSOP - Surface Mount - -