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
1 2345...
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 12644
Ships to you
between Mon. 17 Aug to Wed. 19 Aug Calender.png

AUD 1.5728
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHWQFN - 24Tube  
PCA9555APW,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 12338
Ships to you
between Tue. 25 Aug to Fri. 28 Aug Calender.png

AUD 0.9545
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
XL9535


Interface - I/O Expanders TSSOP24 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.

XINLUDA 11651
Ships to you
between Tue. 25 Aug to Fri. 28 Aug Calender.png

AUD 0.4709
Multiples of: 1

   -        
2746595


Interface - IO Expanders SERIAL REGISTER CHIP EXTENSION INTERBUS
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.

Phoenix Contact 9700
Ships to you
between Wed. 02 Sep to Thu. 01 Oct Calender.png

AUD 22.75
Multiples of: 96

            
PCAL6408AEX1Z


Interface - I/O Expanders Low-voltage translating, 8-bit I2C-bus/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.

NXP 9686
Ships to you
between Mon. 17 Aug to Wed. 19 Aug Calender.png

AUD 1.1279
Multiples of: 1

8 I/OI2c, Serial, Smbus With Interrupt1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtX2QFN - 16   
PCA9575PW2,118


Interface - I/O Expanders I2C Bus/ SMBus Level Translating 28-Pin
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 9282
Ships to you
between Mon. 17 Aug to Wed. 19 Aug Calender.png

AUD 2.4463
Multiples of: 1

     + 85 C- 40 CSmd/SmtTSSOP - 28Reel  
TCA9539PWR


Interface - I/O Expanders Rem 16B I2C & SMBus Low-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 9202
Ships to you
between Tue. 25 Aug to Fri. 28 Aug Calender.png

AUD 1.1791
Multiples of: 1

16I2c, Serial, Smbus400 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
SX1508BIULTRT


Interface - IO Expanders 8 CHAN LOW VOLT I2C GPIO PWM
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 9190
Ships to you
between Mon. 17 Aug to Wed. 19 Aug Calender.png

AUD 1.604
Multiples of: 1

8 I/OI2c, Serial2 MHzWith Interrupt3.6 V+ 85 C- 40 CSmd/SmtQFN - 20Reel  
PCF8574DWR(UMW)


SOIC-16-300mil 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.

Youtai 9046
Ships to you
between Tue. 25 Aug to Fri. 28 Aug Calender.png

AUD 0.5184
Multiples of: 1

            
PCA9538ABSHP


Interface - I/O Expanders 8bit 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 7472
Ships to you
between Mon. 17 Aug to Wed. 19 Aug Calender.png

AUD 1.3775
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHVQFN - 16Bulk  
  • NoFilter
  • Contains
  • DoesNotContain
  • StartsWith
  • EndsWith
  • EqualTo
  • NotEqualTo
  • GreaterThan
  • LessThan
  • GreaterThanOrEqualTo
  • LessThanOrEqualTo
  • Between
  • NotBetween
  • IsEmpty
  • NotIsEmpty
  • IsNull
  • NotIsNull
  • Custom
1 2345...

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