About Interface - I/O Expanders

Silicon Labs 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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SI8442AB-C-IS


Digital Isolators 2.5 kV 2 forward & 2 reverse 4-channel isolator
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Silicon Labs 45
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USD 4.056
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 16 Wide   
SI8431BB-D-IS


Digital Isolators 2.5 kV 2 forward & 1 reverse 3-channel isolator
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Silicon Labs 42
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USD 5.213
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 16 WideTube  
SI8441AB-C-IS


Digital Isolators 2.5 kV 3 forward & 1 reverse 4-channel isolator
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Silicon Labs 34
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USD 3.7459
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 16 Wide   
SI8420AB-C-IS


Digital Isolators 2.5 kV 2-channel digital isolator
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Silicon Labs 0
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USD 2.0536
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 8Tube  
SI8431AB-C-IS


Digital Isolators 2.5 kV 2 forward & 1 reverse 3-channel isolator
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Silicon Labs 0
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USD 2.457
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 16 Wide   
SI8431AB-C-IS1


Digital Isolators 2.5 kV 2 forward & 1 reverse 3-channel isolator
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Silicon Labs 0
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USD 2.6592
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/Smt    
SI8430AB-C-IS1


Digital Isolators 2.5 kV 3-channel digital isolator
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Silicon Labs 0
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USD 2.6723
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/Smt    
SI8421BB-C-IS


Digital Isolators 2.5 kV 1 forward & 1 reverse 2-channel isolator
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Silicon Labs 0
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USD 2.8698
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 8   
SI8441AA-C-IS1


Digital Isolators 1 kV 3 forward & 1 reverse 4-channel isolator
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Silicon Labs 0
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USD 3.2516
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/Smt    
SI8441AA-D-IS1


Digital Isolators 1 kV 3 forward & 1 reverse 4-channel isolator
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Silicon Labs 0
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USD 3.2516
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    2.7 v to 5.5 V+ 125 C- 40 CSmd/SmtSOIC - 16 NarrowTube  
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