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 21 - 40 of 256 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. 125-4198
Mfr. Part No.CY8C9540A-24PVXI
PHP418.80
Each
units
40 I2C 48 SSOP 100kHz Surface Mount 5.25 V 3 V
RS Stock No. 124-2351
Mfr. Part No.PCA9535PW,112
BrandNXP
PHP77.175
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. 162-8358
Mfr. Part No.TCA9554APWR
PHP38.302
Each (On a Reel of 2000)
units
8 I2C, SMBus 16 TSSOP 400kHz Surface Mount 5.5 V 1.65 V
RS Stock No. 188-5383
Mfr. Part No.CY8C9540A-24PVXI
PHP355.333
Each (In a Tube of 30)
units
40 I2C 48 SSOP 24MHz Surface Mount 5.25 V 3 V
RS Stock No. 814-3990
Mfr. Part No.TCA9554APWR
PHP57.624
Each (In a Pack of 10)
units
8 I2C, SMBus 16 TSSOP 400kHz Surface Mount 5.5 V 1.65 V
RS Stock No. 510-857
Mfr. Part No.PCA9535PW,112
BrandNXP
PHP91.072
Each (In a Pack of 5)
units
16 - 24 TSSOP 400kHz Surface Mount 5 V, 5.5 V 2.3 V
RS Stock No. 517-0687
Mfr. Part No.PCF8574N
PHP81.81
Each (In a Pack of 5)
units
8 I2C, SMBus 16 PDIP - Through Hole - -
RS Stock No. 727-5624
Mfr. Part No.PCA9505DGG,112
BrandNXP
PHP175.96
Each
units
- - - TSSOP 100 kHz, 400 kHz Surface Mount 5 V 2.3 V
RS Stock No. 163-0308
Mfr. Part No.PCA9535EDWR2G
PHP52.479
Each (On a Reel of 1000)
units
16 I2C 24 SOIC 1MHz Surface Mount 5.5 V 1.65 V
RS Stock No. 145-9007
Mfr. Part No.MCP23016-I/SS
BrandMicrochip
PHP72.549
Each (In a Tube of 47)
units
16 I2C 28 SSOP 400kHz Surface Mount 5.5 V 2 V
RS Stock No. 823-4223
Mfr. Part No.PCA9535ECDTR2G
PHP90.042
Each (In a Pack of 10)
units
16 I2C 24 TSSOP 1MHz Surface Mount 5.5 V 1.65 V
RS Stock No. 483-7193
Mfr. Part No.PCA9555D,112
BrandNXP
PHP97.76
Each
units
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 517-0249
Mfr. Part No.PCF8574AN
PHP71.52
Each
units
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS Stock No. 770-9717
Mfr. Part No.MCP23016-I/SS
BrandMicrochip
PHP86.957
Each (In a Pack of 3)
units
16 I2C 28 SSOP 400kHz Surface Mount 5.5 V 2 V
RS Stock No. 770-9729
Mfr. Part No.MCP23018-E/SS
BrandMicrochip
PHP85.407
Each (In a Pack of 3)
units
16 I2C 24 SSOP 3.4MHz Surface Mount 5.5 V 1.8 V
RS Stock No. 121-7978
Mfr. Part No.PCA9535ECDTR2G
PHP51.247
Each (On a Reel of 2500)
units
16 I2C 24 TSSOP 1MHz Surface Mount 5.5 V 1.65 V
RS Stock No. 146-0195
Mfr. Part No.MCP23018-E/SS
BrandMicrochip
PHP71.001
Each (In a Tube of 59)
units
16 I2C 24 SSOP 3.4MHz Surface Mount 5.5 V 1.8 V
RS Stock No. 920-3374
Mfr. Part No.PCF8574AN
PHP61.23
Each (In a Tube of 25)
units
8 I2C, SMBus 16 PDIP 100kHz Through Hole - -
RS Stock No. 124-2355
Mfr. Part No.PCA9555D,112
BrandNXP
PHP83.349
Each (In a Tube of 30)
units
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 823-4232
Mfr. Part No.PCA9535EDWR2G
PHP90.042
Each (In a Pack of 10)
units
16 I2C 24 SOIC 1MHz Surface Mount 5.5 V 1.65 V
Related Products
Multi-port I/O expanders from Cypress Semiconductor with on-board ...
Description:
Multi-port I/O expanders from Cypress Semiconductor with on-board user accessible EEPROM and several PWM outputs. I2C interface logic electrically compatible with SMBusUp to 20 (CY8C9520A), 40 (CY8C9540A), or 60 (CY8C9560A) I/O data pins independently configurable as inputs, outputs,Bi-directional input/outputs, ...
Multi-port I/O expanders from Cypress Semiconductor with on-board ...
Description:
Multi-port I/O expanders from Cypress Semiconductor with on-board user accessible EEPROM and several PWM outputs. I2C interface logic electrically compatible with SMBusUp to 20 (CY8C9520A), 40 (CY8C9540A), or 60 (CY8C9560A) I/O data pins independently configurable as inputs, outputs,Bi-directional input/outputs, ...
The Microchip MTCH652 is a Driver IC designed ...
Description:
The Microchip MTCH652 is a Driver IC designed to drive High-Voltage Outputs in Capacitive Touch applications. The MTCH652 combines a Boost Converter with 19 Level Shifters to drive up to 19 channels.The device is programmable via a Configuration (CONFIG) registers. ...
This range of mobile I/O expanders and keypad ...
Description:
This range of mobile I/O expanders and keypad controllers from Analog Devices are ideal for applications which need a large extended keypad and/or expanded I/Os. This is applications such as portable devices, smartphones, inventory scanners, medical equipment and meter readers.Mobile ...