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
  
                
PCA9500PW,118


Interface - I/O Expanders 8BIT I2C FMQB GPIO PU2K EEPROM
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 2235
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 1.7731

Multiples of: 1

8 I/O   2.5 v to 3.6 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
TCAL6416RADTOR


Interface - I/O Expanders 16-bit translating IC-bus/SMBus I/O expander with interrupt, reset, sticky registers, and agile
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 2231
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 2.1343

Multiples of: 1

16 I/OI2C With Interrupt + 125 C- 40 CSMD/SMTQFN - 24Reel , Cut Tape4 kV 
PI4IOE5V9554LEX


Interface - I/O Expanders 8-bit I2C and SMBus IO Port
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.

Diodes Incorporated 2189
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 0.8324

Multiples of: 1

8 I/OI2c, Serial, Smbus With Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Cut Tape  
PCF8574ADWRG


SOP-16W I/O Expanders ROHS
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.

HANSCHIP 2129
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 0.5128

Multiples of: 1

            
PCF8574DWR


Interface - I/O Expanders 8bit I/O Expndr
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 2127
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.3867

Multiples of: 1

8 100 KHz 2.5 v to 6 V+ 85 C- 40 CSmd/SmtSOIC - 16Reel  
PCA9539RPW/Q900J


Interface - IO Expanders 16-bit I2C-bus and SMBus low power IO port with interrupt and reset
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 2080
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 1.9866

Multiples of: 1

16 I/OI2c, Serial, Smbus With Interrupt2.3 v to 5.5 V+ 125 C- 40 CSmd/SmtTSSOP - 24Cut Tape  
MCP23S09T-E/MG


Interface - IO Expanders 8B IO Expander SPI 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 2061
Ships to you
between Fri. 27 Mar to Thu. 02 Apr
Calender.png

AUD 1.8284

Multiples of: 1

     + 125 C- 40 CSMD/SMTQFN - 16Cut Tape , Reel  
TCA9535RGER


Interface - I/O Expanders Remote 16bit I2C and SMBux
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 1897
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 2.9979

Multiples of: 1

16 I/OI2c, Serial, Smbus With Interrupt1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtVQFN - 24Reel  
TCA9554PWR


Interface - I/O Expanders Remote 8-B I2C & SM Bus 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 1775
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 0.6365

Multiples of: 1

8 I/OI2c, Serial, Smbus400 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
MCP23017-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 1713
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.8513

Multiples of: 1

    1.8 V to 5.5 V+ 125 C- 40 CSMD/SMTSSOP - 28Tube  
  • 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