About Interface - I/O Expanders

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.

Interface - I/O Expanders

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(Ex. GST)(▲▼)		Enter Qty Number of I/OsInterface TypeMaximum Operating FrequencyInterrupt OutputOperating Supply VoltageMaximum Operating TemperatureMinimum Operating TemperatureMounting StylePackage / CasePackagingESD ProtectionQualification
  
                
PCAL9539AHF,128


Interface - I/O Expanders Low-voltage 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
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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 Availability : 3137
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USD 1.4835

Multiples of: 1

    1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtHWQFN - 24Reel  
TCA1116RTWR


Interface - I/O Expanders 16B I2C & SMBus Lo-Pwr I/O Expander
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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 Availability : 3090
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USD 1.2312

Multiples of: 1

16 I/OI2c, Serial, Smbus  1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtWQFN - 24Cut Tape  
MCP23S18-E/MJ


Interface - I/O Expanders 16B I/O Expander SPI interface
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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 Availability : 3084
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USD 1.8875

Multiples of: 91

  3.4 MHz 1.8 v to 5.5 V+ 125 C- 40 CSmd/SmtQFN - 24Tube  
PCA9698DGG,518


Interface - I/O Expanders 40BT I2C FM+TPGPIO IN-RS-PU OE
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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 Availability : 3080
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USD 4.008

Multiples of: 1

40 I/OI2c, Serial With Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 56Reel  
PCA9670BS,118


NXP Semiconductors Interface - IO Expanders REMOTE 8-BIT GPIO
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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 Availability : 3067
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.7981

Multiples of: 1

8 I/OI2c, Serial1 MHzWith Interrupt2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtHVQFN - 16Reel  
PCA9539PW/Q900,118


Interface - I/O Expanders 16b I2C BUS INTERUPT
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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 Availability : 3001
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USD 1.173

Multiples of: 1

16 I/O    + 125 C- 40 CSmd/SmtTSSOP - 24Reel  
Hot PCA9539PW,118


Interface - I/O Expanders 16-BIT I2C FM TP GPIO INT RST
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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 Availability : 2947
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USD 0.6452

Multiples of: 1

16 I/OI2c, Smbus  2.3 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 24Reel  
MCP23S09T-E/SO


Interface - I/O Expanders 8-bit I/O Expander SPI interface
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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 Availability : 2942
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USD 1.5

Multiples of: 1

        SOIC - 18Cut Tape  
PCA9554CPWJ


NXP Semiconductors Interface - IO Expanders 8b I2CSMBus IO Port I2C Fixed Address
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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 Availability : 2931
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.8441

Multiples of: 1

  100 KHz 1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtTSSOP - 16Reel  
TCA6424RGJR


Interface - I/O Expanders Lo Vltg 24B I2C & SMBus I/O Expander
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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 Availability : 2913
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 2.1594

Multiples of: 1

24I2c, Smbus400 KHzYes1.65 v to 5.5 V+ 85 C- 40 CSmd/SmtQFN - 32 EPReel  
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