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.


...
Read more Read less

Filters

Viewing 1 - 20 of 42 products
Results per page
Description Price Number of I/O Channels Interface Number of Pins Package Type Clock Frequency Mounting Type Maximum Supply Voltage Minimum Supply Voltage
RS Stock No. 797-4728
Mfr. Part No.PCA9555D,118
BrandNXP
MYR11.22
Each (In a Pack of 2)
units
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 166-0161
Mfr. Part No.PCA9555D,118
BrandNXP
MYR9.054
Each (On a Reel of 1000)
units
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 273-539
Mfr. Part No.P82B715TD,112
BrandNXP
MYR15.53
Each
units
- I2C, SMBus 8 SOIC 400kHz Surface Mount - -
RS Stock No. 124-2337
Mfr. Part No.P82B715TD,112
BrandNXP
MYR15.199
Each (In a Tube of 100)
units
- I2C, SMBus 8 SOIC 400kHz Surface Mount - -
RS Stock No. 124-2361
Mfr. Part No.PCA9698DGG,512
BrandNXP
MYR18.385
Each (In a Tube of 35)
units
40 I2C, SMBus 56 TSSOP 1MHz Surface Mount 5.5 V 2.3 V
RS Stock No. 511-068
Mfr. Part No.PCA9698DGG,512
BrandNXP
MYR21.63
Each
units
40 I2C, SMBus 56 TSSOP 1MHz Surface Mount 5.5 V 2.3 V
RS Stock No. 124-2364
Mfr. Part No.PCF8574T/3,512
BrandNXP
MYR5.241
Each (In a Tube of 48)
units
8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 510-780
Mfr. Part No.PCF8574T/3,512
BrandNXP
MYR6.30
Each (In a Pack of 5)
units
8 I2C 16 SOIC 100kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 124-2366
Mfr. Part No.PCF8575TS/1,112
BrandNXP
MYR7.44
Each (In a Tube of 59)
units
16 I2C 24 SSOP 400kHz Surface Mount 5.5 V 2.5 V
RS Stock No. 727-5680
Mfr. Part No.PCA9535BS,118
BrandNXP
MYR7.24
Each (In a Pack of 2)
units
- I2C, SMBus - HVQFN - Surface Mount - -
RS Stock No. 103-8078
Mfr. Part No.PCA9555BS,118
BrandNXP
MYR4.98
Each (On a Reel of 6000)
units
16 I2C, SMBus 24 HVQFN 400kHz Surface Mount - -
RS Stock No. 166-0319
Mfr. Part No.PCA9539BS,118
BrandNXP
MYR6.112
Each (On a Reel of 6000)
units
- I2C, SMBus - HVQFN - Surface Mount - -
RS Stock No. 103-5691
Mfr. Part No.PCA9554D,112
BrandNXP
MYR7.125
Each (In a Tube of 48)
units
8 I2C, SMBus 16 SOIC 400kHz Surface Mount - -
RS Stock No. 124-2351
Mfr. Part No.PCA9535PW,112
BrandNXP
MYR6.998
Each (In a Tube of 63)
units
16 I2C, SMBus 24 TSSOP 400kHz Surface Mount 5 V, 5.5 V 2.3 V
RS Stock No. 510-784
Mfr. Part No.PCF8574TS/3,112
BrandNXP
MYR9.90
Each
units
8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS Stock No. 483-7171
Mfr. Part No.PCA9554D,112
BrandNXP
MYR8.298
Each (In a Pack of 5)
units
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 103-5692
Mfr. Part No.PCA9554PW,112
BrandNXP
MYR5.44
Each (In a Tube of 96)
units
- I2C, SMBus 16 TSSOP - Surface Mount - -
RS Stock No. 436-8344
Mfr. Part No.PCF8575TS/1,112
BrandNXP
MYR9.63
Each
units
16 I2C 24 SSOP 400kHz Surface Mount 5.5 V 2.5 V
RS Stock No. 727-5670
Mfr. Part No.PCA9518PW,112
BrandNXP
MYR9.705
Each (In a Pack of 2)
units
- I2C - TSSOP - Surface Mount - -
RS Stock No. 124-2365
Mfr. Part No.PCF8574TS/3,112
BrandNXP
MYR5.96
Each (In a Tube of 75)
units
8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V