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 SPI 18-Pin QFN, MCP23S18T-E/MJ

Microchip I/O Expander SPI 16-Pin QFN, MCP23S09T-E/MG

Microchip I/O Expander SPI 18-Pin QFN, MCP23S08T-E/ML

Microchip I/O Expander I2C 16-Pin QFN, MCP23009T-E/MG

Microchip I/O Expander I2C 24-Pin QFN, MCP23018T-E/MJ


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

1492797549

1805640584

1872595187

1950438482

2099506070

2911534392

2972144945

3047907070

3089561311

3379516231

3702440375

3893962904

3999174723

4084450865

482906937

573211935

607105215

630592386

1337321341

1713511683

1953764780

2212326362

245755136

2675376924

2694081498

2854130884

3031041232

3479376779

3537785963

3606191116

3676807775

3694170890

3696367266

3871454867

3980878867

4239710393

730636658

Development Tools & Single Board Computers

Raspberry Pi, Arduino, ROCK, STEM Education & Development Tools

Electronic Components, Power & Connectors

Engineering Materials & Industrial Hardware

Pneumatic Counters, Logic Controllers & Timers

Electronics Cleaners & Protective Coatings

Texas Instruments 8-Channel I/O Expander I2C TCA9554APWR

Maxim Integrated I/O Expander Serial I2C TSSOP, MAX7310AUE+

Maxim Integrated I/O Expander Serial I2C SSOP, MAX7311AAG+

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

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

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

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

Microchip I/O Expanders

105 Products showing for Microchip I/O Expanders

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