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
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
  
                
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 10818
Ships to you
between Fri. 10 Jul to Wed. 15 Jul
Calender.png

AUD 1.1942

Multiples of: 1

16 I/OI2C, Serial, SMBus  1.65 V to 5.5 V+ 85 C- 40 CSMD/SMTTSSOP - 24Cut Tape , Reel  
PCA9555D,118


Interface - I/O Expanders 16-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 5529
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 2.4231

Multiples of: 1

16I2c, Smbus400 KHzYes2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtSOIC - 24Reel  
PCA9554CBSHP


Interface - IO Expanders 8b I2CSMBus IO Port I2C Fixed Address
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 5477
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 1.3684

Multiples of: 1

    1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHVQFN - 16Cut Tape  
PCA6408APW,118


Interface - I/O Expanders 8bit IO Expander Low Voltage TSSOP
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 5425
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 0.8831

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
PCAL6534EVJ


Interface - I/O Expanders ULV 34-bit Fm+, I2C- 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 5073
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 2.3571

Multiples of: 1

 I2c, Serial, Smbus With Interrupt0.8 v to 3.6 V+ 85 C- 40 CSmd/SmtVFBGA - 42Cut Tape  
TPT29555A-QF8R


16 I2C QFN-24(4x4) 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.

3PEAK 4912
Ships to you
between Fri. 10 Jul to Wed. 15 Jul
Calender.png

AUD 0.4505

Multiples of: 1

   Interrupt Output        
TC7SPN334L6X,LF(S


Low-Voltage, Low-Power 1-Bit Dual-Supply Bus Buffer
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.

Toshiba 4850
Ships to you
between Fri. 26 Jun to Thu. 02 Jul
Calender.png

AUD 0.313

Multiples of: 1

            
PCA6416AEVJ


Interface - I/O Expanders 16bit IO Expander Low Voltage VFBGA
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 4725
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 1.1377

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtVFBGA - 24Reel  
PCF8574RGTR(UMW)


WQFN-16-EP(3x3) 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 3914
Ships to you
between Fri. 10 Jul to Wed. 15 Jul
Calender.png

AUD 0.42

Multiples of: 1

            
PCAL9538ABSHP


Interface - IO Expanders 8it I SqrC-busSMBus low power 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 2609
Ships to you
between Thu. 02 Jul to Mon. 06 Jul
Calender.png

AUD 1.5054

Multiples of: 1

         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