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
Qualification
Reset
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
  
                
PCA9500D,112


NXP Semiconductors Interface - IO Expanders IO EXPANDER W2K EE
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 0
6 to 16 Weeks Calender.png

AUD 1.452

Multiples of: 1

8 I/O   2.5 v to 3.6 V+ 85 C- 40 CSmd/SmtSOT - 109Tube  
PCA9555PW/DG,118


Interface - IO Expanders 16-BT I2CSMBUS
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 0
6 to 16 Weeks Calender.png

AUD 1.456

Multiples of: 1

    2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
PCF8574RGYRG4


I2C GPIO Expander 6V 20-Pin VQFN EP T/R
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 0
6 to 16 Weeks Calender.png

AUD 1.4571

Multiples of: 3000

8 I/O   2.5 v to 6 V+ 85 C- 40 CSmd/SmtVQFN - 20Reel  
PCA9501D,118


Interface - I/O Expanders 8BIT I2C FMQB GPIONT PU2K EPR
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 0
6 to 16 Weeks Calender.png

AUD 1.4749

Multiples of: 1

8 I/O   2.5 v to 3.6 V+ 85 C- 40 CSmd/SmtSO - 20Reel  
MAX7304ETG+


Maxim Integrated Interface - IO Expanders I2C 16Port LT GPIO and LED Driver
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.

Analog Devices 0
6 to 16 Weeks Calender.png

AUD 1.4779

Multiples of: 1

12 I/O   1.62 v to 3.6 V+ 85 C- 40 CSmd/SmtTQFN - 24Tube  
PCA9518DBQR


Interface - I/O Expanders Expandable 5-Ch I2C Hub
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 0
6 to 16 Weeks Calender.png

AUD 1.4786

Multiples of: 2500

5 I/O   3 v to 3.6 V+ 85 C- 40 CSmd/SmtQSOP - 20Cut Tape  
PCA9556PW,112


NXP Semiconductors Interface - IO Expanders OCTAL SMBUS REG 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.

NXP 0
6 to 16 Weeks Calender.png

AUD 1.4804

Multiples of: 1

8 I/OI2c, Serial, Smbus  3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Tube  
PCA9538PW


Interface - I/O Expanders Rem 8B I2C & SMBus Lo-Pwr 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 0
6 to 16 Weeks Calender.png

AUD 1.4805

Multiples of: 1

8I2c, Serial, Smbus400 KHzWith Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Tube  
PCF8575CTS/1,112


Interface - I/O Expanders REMOTE 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.

NXP 0
6 to 16 Weeks Calender.png

AUD 1.4864

Multiples of: 1

16 I/O   2.5 v to 6 V+ 85 C- 40 CSmd/SmtSOT - 340Tube  
SX1503I091TRT


Interface - I/O Expanders 16 CHANNEL HIGH VOLTAGE 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.

Semtech 0
6 to 16 Weeks Calender.png

AUD 1.4954

Multiples of: 1

16 I/OI2c, Serial With Interrupt5.5 V+ 85 C- 40 CSmd/SmtQFN - 28Cut Tape  
  • NoFilter
  • Contains
  • DoesNotContain
  • StartsWith
  • EndsWith
  • EqualTo
  • NotEqualTo
  • GreaterThan
  • LessThan
  • GreaterThanOrEqualTo
  • LessThanOrEqualTo
  • Between
  • NotBetween
  • IsEmpty
  • NotIsEmpty
  • IsNull
  • NotIsNull
  • Custom

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

 

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.
 

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