Interface - I/O Expanders

An interface I/O expander is a type of electronic circuit that is used to increase the number of input/output ports available in an embedded system. These expanders allow for more efficient use of the limited I/O ports available in most microcontrollers. By adding additional interface I/O ports, the need for extra I/O components such as additional LEDs, dials, switches, and relays can be eliminated. Additionally, by including an interface I/O expander, more complex embedded systems can be designed, using less overall components. The interface I/O expander itself will typically consist of multiple parallel ports, which can be used to communicate to and from the microcontroller, as well as multiple external devices. Common interface I/O expanders include serial-to-parallel converters, parallel-to-serial converters, shift registers, port expanders and more.
Enable Filter
Manufacturer
Reset
Number of I/Os
Reset
Interface Type
Reset
Maximum Operating Frequency
Reset
Interrupt Output
Reset
Operating Supply Voltage
Reset
Maximum Operating Temperature
Reset
Minimum Operating Temperature
Reset
Mounting Style
Reset
Package / Case
Reset
Packaging
Reset
ESD Protection
Reset
Qualification
Reset
First...678910...
Image  Information Image Stock Code(▲▼)Description
Manufacturer
Availability ⓘ (▲▼)Price(AUD) 

(Ex. GST)(▲▼)		Enter Qty Number of I/OsInterface TypeMaximum Operating FrequencyInterrupt OutputOperating Supply VoltageMaximum Operating TemperatureMinimum Operating TemperatureMounting StylePackage / CasePackagingESD ProtectionQualification
  
                
PCAL9555AHF,128


Interface - I/O Expanders Low-voltage 16-bit I2C-bus GPIO with Agile I/O, interrupt and weak pull-up
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

NXP 25773
Ships to you
between Thu. 01 Oct to Mon. 05 Oct Calender.png

AUD 1.5054
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHWQFN - 24Tube  
PCF8574RGTR


Interface - I/O Expanders Remote 8-Bit I/O Expander for I2C-Bus
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments 5247
Ships to you
between Fri. 09 Oct to Wed. 14 Oct Calender.png

AUD 1.512
Multiples of: 1

8 100 KHz 2.5 v to 6 V+ 85 C- 40 CSmd/SmtVQFN - 16Reel  
MCP23017T-E/SS


Interface - I/O Expanders 16bit Input/Output Exp I2C interface
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Microchip 5218
Ships to you
between Fri. 25 Sep to Thu. 01 Oct Calender.png

AUD 1.6438
Multiples of: 1

17I2 C10 MHzYes1.8 v to 5.5 V+ 125 C- 40 CSmd/SmtSSOP - 28Reel  
PCA9555DBR


Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments 5107
Ships to you
between Fri. 09 Oct to Wed. 14 Oct Calender.png

AUD 2.4163
Multiples of: 1

16I2c, Serial, Smbus400 KHz 2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtSSOP - 24Reel  
MCP23017T-E/SO


Microchip Technology Interface - IO Expanders 16bit InputOutput Exp I2C interface
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Microchip 5048
Ships to you
between Fri. 25 Sep to Thu. 01 Oct Calender.png

AUD 2.0714
Multiples of: 1

16 I/OI2c, Serial1.7 MHzWith Interrupt1.8 v to 5.5 V+ 125 C- 40 CSmd/Smt Reel  
PCA6416APW,118


Interface - I/O Expanders 16b I2C BUS INTERUPT
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

NXP 4934
Ships to you
between Thu. 01 Oct to Mon. 05 Oct Calender.png

AUD 1.309
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
PCA9671BS,118


Interface - I/O Expanders REMOTE 16BIT GPIO
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

NXP 4925
Ships to you
between Thu. 01 Oct to Mon. 05 Oct Calender.png

AUD 2.1371
Multiples of: 1

16 I/OI2c, Serial With Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/Smt Cut Tape  
TC7SPN334L6X,LF(S


Low-Voltage, Low-Power 1-Bit Dual-Supply Bus Buffer
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Toshiba 4850
Ships to you
between Fri. 25 Sep to Thu. 01 Oct Calender.png

AUD 0.313
Multiples of: 1

            
PCA6416AEVJ


Interface - I/O Expanders 16bit IO Expander Low Voltage VFBGA
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

NXP 4683
Ships to you
between Thu. 01 Oct to Mon. 05 Oct Calender.png

AUD 1.3059
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtVFBGA - 24Reel  
PCA9501PW,118


Interface - I/O Expanders 8BIT I2C
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

NXP 4539
Ships to you
between Thu. 01 Oct to Mon. 05 Oct Calender.png

AUD 2.4357
Multiples of: 1

8 I/O   2.5 v to 3.6 V+ 85 C- 40 CSmd/SmtTSSOP - 20Reel  
  • NoFilter
  • Contains
  • DoesNotContain
  • StartsWith
  • EndsWith
  • EqualTo
  • NotEqualTo
  • GreaterThan
  • LessThan
  • GreaterThanOrEqualTo
  • LessThanOrEqualTo
  • Between
  • NotBetween
  • IsEmpty
  • NotIsEmpty
  • IsNull
  • NotIsNull
  • Custom
First...678910...

Looking for help? Visit our FAQ's Section to answer to all your questions

Resources

Company

Support

 

X-ON Worldwide Electronics

Welcome To X-ON ELECTRONICS
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
  +61 8 9358 9358 |   sales@x-on.com.au |   Chat
 
Policies | Terms and Conditions | Sitemap

Copyright ©2026  X-ON Electronic Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing.
All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted