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
  
                
PCA9535PW,118


Interface - I/O Expanders 16-BIT I2C FM TP GPIO INT
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 33426
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.1132

Multiples of: 1

16 I/OI2c, Smbus With Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
MCP23S17T-E/SS


Interface - I/O Expanders 16bit Input/Output Exp 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 23871
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.5872

Multiples of: 1

16 I/OSpi10 MHzYes1.8 v to 5.5 V+ 125 C- 40 CSmdsmtSSOP - 28Reel  
PCA9554PW,118


Interface - I/O Expanders 8-BIT I2C FM TP GPIO INT PU
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 8846
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.1296

Multiples of: 1

8 I/OI2c, Smbus  2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
MCP23018T-E/SO


Interface - I/O Expanders 16B I/O Expander 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 7626
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 2.4479

Multiples of: 1

        SOIC - 28Reel  
PCA9506DGG,518


Interface - I/O Expanders 40BIT I2C FMTP GPIO INT RST OE
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 7249
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 5.2373

Multiples of: 1

40 I/O   2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 56Reel  
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 6855
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 1.2149

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
TXS02612RTWR


Translation - Voltage Levels SDIO Port 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 6343
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 0.8082

Multiples of: 1

    1.1 V To 3.6 V+ 85 C- 40 CSmd/SmtQFN - 24 EPReel  
PCA9539AHF,128


NXP Semiconductors Interface - IO Expanders 16bit I2C 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.

NXP 4365
Ships to you
between Thu. 02 Apr to Mon. 06 Apr
Calender.png

AUD 1.4136

Multiples of: 1

16 I/O 100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHWQFN - 24Reel  
MCP23017T-E/ML


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 4252
Ships to you
between Fri. 10 Apr to Wed. 15 Apr
Calender.png

AUD 1.7119

Multiples of: 1

16 I/OI2 C1.7 MHzYes4.5 v to 5.5 V+ 125 C- 40 CSmdsmtQFN - 28Reel  
TCA9535PWR


Interface - I/O Expanders Remt 16Bit I2C SMBus Lo-Pwr 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 1271
Ships to you
between Fri. 27 Mar to Thu. 02 Apr
Calender.png

AUD 1.6299

Multiples of: 1

16 I/OI2C, Serial, SMBus  1.65 V to 5.5 V+ 85 C- 40 CSMD/SMTTSSOP - 24Cut Tape , Reel  
  • 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