brands

attributes.Number_of_I002fO_Channels

attributes.Interface

attributes.Number_of_Pins

attributes.Package_Type

attributes.Clock_Frequency

attributes.Mounting_Type

attributes.Maximum_Supply_Voltage

attributes.Minimum_Supply_Voltage

Microchip I/O Expander I2C 28-Pin SOIC, MCP23018T-E/SO

Microchip I/O Expander I2C 18-Pin SOIC, MCP23009-E/SO

Microchip I/O Expander I2C 28-Pin SOIC, MCP23016T-I/SO


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](/web/c/pcb-prototyping/printed-circuit-boards-pcb/), 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.



I/O Expanders

Interface ICs

Semiconductors

1228569899

1370019343

1492797549

1805640584

1950438482

2911534392

2972144945

3047907070

3089561311

3379516231

3577158573

3702440375

3893962904

3999174723

4084450865

4292484756

595160564

607105215

630592386

1953764780

2854130884

3031041232

3606191116

3694170890

4239710393

Development Tools & Single Board Computers

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Pneumatic Counters, Logic Controllers & Timers

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Texas Instruments 8-Channel I/O Expander I2C TCA9554APWR

NXP 2-Channel I/O Expander I2C 8-Pin SO8118

NXP 8-Channel I/O Expander I2C 16-Pin SO16518

NXP 16-Channel I/O Expander I2C 24-Pin TSSOP24118

NXP 8-Channel I/O Expander I2C 24-Pin TSSOP24118

NXP 8-Channel I/O Expander I2C 16-Pin TSSOP16118

Microchip I/O Expanders

103 Products showing for Microchip I/O Expanders

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