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
First...1617181920...
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
  
                
CH423S


Interface - I/O Expanders SOP-28_300mil 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.

Qin Heng 3618
Ships to you
between Fri. 10 Jul to Wed. 15 Jul Calender.png

AUD 0.3541
Multiples of: 5

   No        
MCP23008-E/SO


IC: expander; 8bit I/O port; I2C; SO18; 1.8÷5.5VDC
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 1138
Ships to you
between Fri. 26 Jun to Thu. 02 Jul Calender.png

AUD 1.7321
Multiples of: 42

            
Hot TCA1116PWR


Interface - I/O Expanders 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 1087
Ships to you
between Fri. 10 Jul to Wed. 15 Jul Calender.png

AUD 0.519
Multiples of: 1

16 I/OI2c, Serial, Smbus400 KHz 1.8 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
PCA9673PW,118


Interface - I/O Expanders 16BIT I2C FM+ QBGPIO
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 1057
Ships to you
between Fri. 10 Jul to Wed. 15 Jul Calender.png

AUD 2.4717
Multiples of: 1

    2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
MCP23009-E/MG


Interface - I/O Expanders 8B 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 1047
Ships to you
between Fri. 26 Jun to Thu. 02 Jul Calender.png

AUD 2.0893
Multiples of: 120

    1.8 V To 5.5 V+ 125 C- 40 CSmd/SmtQFN - 16 EPTube  
MCP23008T-E/SO


Interface - I/O Expanders In/Out I2C 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.

Microchip 990
Ships to you
between Fri. 26 Jun to Thu. 02 Jul Calender.png

AUD 1.9049
Multiples of: 1

8 I/OI2c, Serial With Interrupt1.8 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 18Reel  
TCAL6416RDTOR


Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O expa
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 989
Ships to you
between Thu. 02 Jul to Mon. 06 Jul Calender.png

AUD 1.87
Multiples of: 1

 I2C, Serial, SMBus With Interrupt + 125 C- 40 CSMD/SMTX2QFN - 24 4 kV 
PCA9554CPWJ


NXP Semiconductors 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 969
Ships to you
between Thu. 02 Jul to Mon. 06 Jul Calender.png

AUD 1.0623
Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
TPT29555-TS5R


TSSOP-24 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 822
Ships to you
between Fri. 10 Jul to Wed. 15 Jul Calender.png

AUD 0.3477
Multiples of: 1

            
TCA9554APWR


Interface - I/O Expanders Remote 8B I2C & 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.

Texas Instruments 67
Ships to you
between Fri. 10 Jul to Wed. 15 Jul Calender.png

AUD 1.2603
Multiples of: 1

8I2c, Serial, Smbus400 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
  • NoFilter
  • Contains
  • DoesNotContain
  • StartsWith
  • EndsWith
  • EqualTo
  • NotEqualTo
  • GreaterThan
  • LessThan
  • GreaterThanOrEqualTo
  • LessThanOrEqualTo
  • Between
  • NotBetween
  • IsEmpty
  • NotIsEmpty
  • IsNull
  • NotIsNull
  • Custom
First...1617181920...

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