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. 920-3374
FabrikantnummerPCF8574AN
1,166 €
Each (In a Tube of 25)
Aantal stuks
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS-stocknr. 517-0700
FabrikantnummerPCF8574PW
1,476 €
Each (In a Pack of 5)
Aantal stuks
- I2C 20 TSSOP - Surface Mount - -
RS-stocknr. 661-3380
FabrikantnummerPCF8574PWR
1,376 €
Each (In a Pack of 5)
Aantal stuks
- - 20 TSSOP - Surface Mount - -
RS-stocknr. 517-0249
FabrikantnummerPCF8574AN
1,38 €
Each
Aantal stuks
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS-stocknr. 168-5139
FabrikantnummerPCF8574PW
1,063 €
Each (In a Tube of 70)
Aantal stuks
- I2C 20 TSSOP - Surface Mount - -
RS-stocknr. 162-5477
FabrikantnummerPCA9557PWR
0,508 €
Each (On a Reel of 2000)
Aantal stuks
- - 16 TSSOP - Surface Mount - -
RS-stocknr. 661-3371
FabrikantnummerPCA9557PWR
0,518 €
Each (In a Pack of 5)
Aantal stuks
- - 16 TSSOP - Surface Mount - -
RS-stocknr. 661-3488
FabrikantnummerPCF8575DW
2,42 €
Each (In a Pack of 5)
Aantal stuks
16 I2C, SMBus 24 SOIC 400kHz Surface Mount - -
RS-stocknr. 922-3362
FabrikantnummerPCF8575DW
2,053 €
Each (In a Tube of 25)
Aantal stuks
- - - - - - - -
RS-stocknr. 814-3990
FabrikantnummerTCA9554APWR
0,922 €
Each (In a Pack of 10)
Aantal stuks
8 I2C, SMBus 16 TSSOP 400kHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 162-8358
FabrikantnummerTCA9554APWR
0,465 €
Each (On a Reel of 2000)
Aantal stuks
8 I2C, SMBus 16 TSSOP 400kHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 661-3475
FabrikantnummerPCF8575CDW
2,696 €
Each (In a Pack of 5)
Aantal stuks
- I2C, SMBus 24 SOIC - Surface Mount - -
RS-stocknr. 133-0706
FabrikantnummerTCA9538DBR
0,44 €
Each (In a Pack of 5)
Aantal stuks
8 I2C, Parallel 16 SSOP 100 (Standard) kHz, 400 (Fast) kHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 922-3356
FabrikantnummerPCF8575CDW
2,287 €
Each (In a Tube of 25)
Aantal stuks
- - - - - - - -
RS-stocknr. 168-5033
FabrikantnummerTCA9538DBR
0,432 €
Each (On a Reel of 2000)
Aantal stuks
8 I2C, Parallel 16 SSOP 100 (Standard) kHz, 400 (Fast) kHz Surface Mount 5.5 V 1.65 V
RS-stocknr. 162-7823
FabrikantnummerPCA9534PW
1,267 €
Each (In a Tube of 90)
Aantal stuks
8 I2C 16 TSSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 920-3371
FabrikantnummerPCF8574ADW
1,108 €
Each (In a Tube of 40)
Aantal stuks
- I2C 16 SOIC - Surface Mount - -
RS-stocknr. 197-7468
FabrikantnummerPCF8574N
1,166 €
Each (In a Tube of 25)
Aantal stuks
8 I2C 16 PDIP 100kHz - - -
RS-stocknr. 825-3233
FabrikantnummerPCA9534ADB
0,726 €
Each (In a Pack of 5)
Aantal stuks
8 I2C, SMBus 16 SSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-stocknr. 145-0789
FabrikantnummerPCA9557D
0,621 €
Each (In a Tube of 40)
Aantal stuks
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V