I/O expandersare a type of computer hardware that allows more than one device to connect to a single port on a computer.
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.
There are two main types of I/O expanders: internal and external.
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.
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.
Product Details Price | Brand | Number of I/O Channels | Interface | Number of Pins | Package Type | Clock Frequency | Mounting Type | Maximum Supply Voltage | Minimum Supply Voltage |
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£1.382 Each (In a Pack of 5) | Microchip | 16 | I2C, Serial | 28 | SPDIP | 5MHz | Through Hole | - | - | ||||||||||
£1.382 Each (In a Tube of 15) | Microchip | 16 | I2C, Serial | 28 | SPDIP | 5MHz | Through Hole | - | - | ||||||||||
£1.254 Each (In a Pack of 5) | Microchip | 8 | I2C, Serial | 18 | PDIP | 5MHz | Through Hole | - | - | ||||||||||
£1.196 Each (In a Tube of 25) | Microchip | 8 | I2C, Serial | 18 | PDIP | 5MHz | Through Hole | - | - | ||||||||||
£1.314 Each (In a Pack of 5) | Microchip | 16 | I2C, Serial | 28 | SOIC | 5MHz | Surface Mount | - | - | ||||||||||
£1.107 Each (In a Tube of 27) | Microchip | 16 | I2C, Serial | 28 | SOIC | 5MHz | Surface Mount | - | - | ||||||||||
£1.512 Each (In a Tube of 25) | Texas Instruments | 8 | I2C, SMBus | 16 | PDIP | 100kHz | Through Hole | - | - | ||||||||||
Texas Instruments | 8 | I2C, SMBus | 16 | PDIP | 100kHz | Through Hole | - | - | |||||||||||
£1.401 Each (In a Tube of 48) | NXP | 8 | I2C | 16 | SOIC | 100kHz | Surface Mount | 5.5 V | 2.3 V | ||||||||||
£1.618 Each (In a Pack of 5) | NXP | 8 | I2C | 16 | SOIC | 100kHz | Surface Mount | 5.5 V | 2.3 V | ||||||||||
NXP | - | I2C, SMBus | 8 | SOIC | 400kHz | Surface Mount | - | - | |||||||||||
£2.813 Each (In a Tube of 100) | NXP | - | I2C, SMBus | 8 | SOIC | 400kHz | Surface Mount | - | - | ||||||||||
£1.451 Each (In a Tube of 15) | Microchip | 16 | SPI | 28 | PDIP | 10MHz | Through Hole | 5.5 V | 1.8 V | ||||||||||
£1.45 Each (In a Pack of 10) | Microchip | 16 | SPI | 28 | PDIP | 10MHz | Through Hole | 5.5 V | 1.8 V | ||||||||||
£1.382 Each (In a Pack of 5) | Microchip | 16 | Serial-SPI | 28 | SOIC | 5MHz | Surface Mount | - | - | ||||||||||
£1.147 Each (In a Tube of 27) | Microchip | 16 | Serial-SPI | 28 | SOIC | 5MHz | Surface Mount | - | - | ||||||||||
£0.914 Each (In a Tube of 91) | Microchip | 8 | I2C | 20 | QFN | 1.7MHz | Surface Mount | 5.5 V | 1.8 V | ||||||||||
£1.206 Each (In a Pack of 5) | Microchip | 8 | I2C | 20 | QFN | 1.7MHz | Surface Mount | 5.5 V | 1.8 V | ||||||||||
£1.45 Each (In a Pack of 5) | Microchip | 16 | Serial-SPI | 28 | SSOP | 5MHz | Surface Mount | - | - | ||||||||||
£1.147 Each (In a Tube of 47) | Microchip | 16 | I2C | 28 | SSOP | 1.7MHz | Surface Mount | - | - | ||||||||||