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 162-5843
Tillv. art.nrPCA9535DW
VarumärkeTexas Instruments
20,85 kr
Each (In a Tube of 25)
Enheter
- - 24 SOIC - Surface Mount - -
RS-artikelnummer 661-3441
Tillv. art.nrPCA9535DW
VarumärkeTexas Instruments
24,486 kr
Each (In a Pack of 5)
Enheter
- - 24 SOIC - Surface Mount - -
RS-artikelnummer 169-5576
Tillv. art.nrPCF8574APWR
VarumärkeTexas Instruments
5,17 kr
Each (On a Reel of 2000)
Enheter
- - 20 TSSOP - Surface Mount - -
RS-artikelnummer 162-8708
Tillv. art.nrTCA6416ARTWR
VarumärkeTexas Instruments
7,636 kr
Each (On a Reel of 3000)
Enheter
16 I2C, Serial 24 WQFN 400kHz Surface Mount 5.5 V 1.65 V
RS-artikelnummer 825-3502
Tillv. art.nrTCA6416ARTWR
VarumärkeTexas Instruments
13,96 kr
Each (In a Pack of 5)
Enheter
16 I2C, Serial 24 WQFN 400kHz Surface Mount 5.5 V 1.65 V
RS-artikelnummer 661-3378
Tillv. art.nrPCF8574APWR
VarumärkeTexas Instruments
12,056 kr
Each (In a Pack of 5)
Enheter
- - 20 TSSOP - Surface Mount - -
RS-artikelnummer 517-0261
Tillv. art.nrPCF8574APW
VarumärkeTexas Instruments
13,86 kr
Each
Enheter
- - 20 TSSOP - Surface Mount - -
RS-artikelnummer 145-6521
Tillv. art.nrPCF8574APW
VarumärkeTexas Instruments
11,926 kr
Each (In a Tube of 70)
Enheter
- - 20 TSSOP - Surface Mount - -
RS-artikelnummer 517-0687
Tillv. art.nrPCF8574N
VarumärkeTexas Instruments
14,642 kr
Each (In a Pack of 5)
Enheter
8 I2C, SMBus 16 PDIP - Through Hole - -
RS-artikelnummer 920-3393
Tillv. art.nrPCF8574N
VarumärkeTexas Instruments
12,06 kr
Each (In a Tube of 25)
Enheter
8 I2C, SMBus 16 PDIP - Through Hole - -
RS-artikelnummer 825-3265
Tillv. art.nrPCA9554DW
VarumärkeTexas Instruments
19,666 kr
Each (In a Pack of 5)
Enheter
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 162-8683
Tillv. art.nrPCA9554DW
VarumärkeTexas Instruments
16,748 kr
Each (In a Tube of 40)
Enheter
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 661-3380
Tillv. art.nrPCF8574PWR
VarumärkeTexas Instruments
13,814 kr
Each (In a Pack of 5)
Enheter
- - 20 TSSOP - Surface Mount - -
RS-artikelnummer 825-3233
Tillv. art.nrPCA9534ADB
VarumärkeTexas Instruments
7,528 kr
Each (In a Pack of 5)
Enheter
8 I2C, SMBus 16 SSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 133-0708
Tillv. art.nrTCA9554DBQR
VarumärkeTexas Instruments
11,726 kr
Each (In a Pack of 5)
Enheter
8 I2C, Parallel 16 SSOP 100 (Standard) kHz, 400 (Fast) kHz Surface Mount 5.5 V 1.65 V
RS-artikelnummer 145-5937
Tillv. art.nrPCF8575CDB
VarumärkeTexas Instruments
25,998 kr
Each (In a Tray of 60)
Enheter
- - 24 SSOP - Surface Mount - -
RS-artikelnummer 145-1322
Tillv. art.nrPCA9534DW
VarumärkeTexas Instruments
15,717 kr
Each (In a Tube of 40)
Enheter
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 145-6846
Tillv. art.nrPCA9534ADB
VarumärkeTexas Instruments
7,655 kr
Each (In a Tube of 80)
Enheter
8 I2C, SMBus 16 SSOP 400kHz Surface Mount 5.5 V 2.3 V
RS-artikelnummer 133-0706
Tillv. art.nrTCA9538DBR
VarumärkeTexas Instruments
5,192 kr
Each (In a Pack of 5)
Enheter
8 I2C, Parallel 16 SSOP 100 (Standard) kHz, 400 (Fast) kHz Surface Mount 5.5 V 1.65 V
RS-artikelnummer 162-6381
Tillv. art.nrPCF8574DGVR
VarumärkeTexas Instruments
5,505 kr
Each (On a Reel of 2000)
Enheter
8 I2C 20 TVSOP 100kHz Surface Mount 6 V 2.5 V