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
  
                
MAX7318AUG+T


Interface - I/O Expanders 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection
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 4.0866

Multiples of: 1

16 I/OI2c, Serial With Interrupt2 v to 5.5 V+ 125 C- 40 CSmd/Smt Reel  
PCA9539PWG4


Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Exp
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 4.1225

Multiples of: 360

16I2c, Smbus400 KHzYes2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Tube  
PCA9654EDTR2G


ON Semiconductor Interface - IO Expanders 8-BIT IO EXPANDER FOR I2
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.

ON Semiconductor 0
6 to 16 Weeks Calender.png

AUD 4.1672

Multiples of: 1

         Reel Aec - Q100
SI8431AB-C-IS1


Digital Isolators 2.5 kV 2 forward & 1 reverse 3-channel isolator
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.

Silicon Labs 0
6 to 16 Weeks Calender.png

AUD 4.2209

Multiples of: 1

    2.7 v to 5.5 V+ 125 C- 40 CSmd/Smt    
SI8430AB-C-IS1


Digital Isolators 2.5 kV 3-channel digital isolator
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.

Silicon Labs 0
6 to 16 Weeks Calender.png

AUD 4.2418

Multiples of: 1

    2.7 v to 5.5 V+ 125 C- 40 CSmd/Smt    
PCF8574P


IC, I/O EXPANDER 8BIT, 8574, DIP16
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 4.26

Multiples of: 1

         Each  
MAX7317ATE+T


Interface - I/O Expanders 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection
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 4.3668

Multiples of: 1

10 I/OSerial, Spi Without Interrupt2.25 v to 3.6 V+ 125 C- 40 CSmd/SmtQSOP - 16Reel  
TCA9536BDTMR


Interface - I/O Expanders Remote 4-Bit I²C and SMBus I/O expander with configuration register and interrupt 8-X2SON -40 to 125
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 4.4256

Multiples of: 1

   With Interrupt Output        
MAX7315AEE+


Interface - I/O Expanders 8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
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 4.5

Multiples of: 1

8I2c, Smbus400 KHzYes2 v to 3.6 V+ 125 C- 40 CSmd/SmtQSOP - 16Tube  
PCA9505DGG,112


Interface - I/O Expanders 40-BIT I2C FM TP
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 4.51

Multiples of: 1

         Tube  
  • 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