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
  
                
PCA9534PW,118


Interface - I/O Expanders I2C/SMBUS 8BIT LP
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 54018
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.5447

Multiples of: 1

8 I/OI2c, Smbus  2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
PCA9570GMH


NXP Semiconductors Interface - IO Expanders Low voltage output 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 45177
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 0.6364

Multiples of: 1

4 I/OI2c, Serial1 MHzWith Interrupt3.6 V+ 85 C- 40 CSmd/SmtXQFN - 8Reel  
PCA6408AHKX


NXP Semiconductors Interface - IO Expanders 8bit IO Expander Low Voltage XQFN
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 31136
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 0.8407

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtXQFN - 16Reel  
PCA9555AHF,128


Interface - I/O Expanders Low-voltage 16-bit I2C-bus I/O port with 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 27558
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.5196

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHWQFN - 24Tube  
PCA9536DP,118


Interface - I/O Expanders I2C/SMBUS 4BIT GPIO
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 26561
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.3467

Multiples of: 1

4 I/OI2c, Smbus Without Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 8Reel  
PCA9539PW


Interface - I/O Expanders TSSOP-24 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.

NXP 25553
Ships to you
between Fri. 09 Oct to Wed. 14 Oct
Calender.png

AUD 1.2723

Multiples of: 1

   Yes        
PCA9536TK,118


Interface - I/O Expanders 4-BIT I2C FM TP GPIO
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 24991
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.4159

Multiples of: 1

4 I/OI2c, Serial, Smbus Without Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtHVSON - 8Reel  
PI4IOE5V9555ZDEX


Interface - IO Expanders 16-bit I2C-bus 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 23820
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.3981

Multiples of: 1

8 I/OI2c, Serial, Smbus With Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTQFN - 24Cut Tape  
SX1509BIULTRT


Interface - I/O Expanders 16 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 23614
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 3.0525

Multiples of: 1

16 I/OI2c, Serial With Interrupt3.6 V+ 85 C- 40 CSmd/SmtQFN - 28-  
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 21198
Ships to you
between Thu. 01 Oct to Mon. 05 Oct
Calender.png

AUD 1.3184

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

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