8 Port Expander: SPI MCP23S08 Maximize

8 Port Expander: SPI MCP23S08

Add 8 more pins that are accessible using SPI easily with this chip. Arduino and Raspberry Pi Compatible

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Availability: SHIPS TODAY

Last Updated: 06/14/2024




Addding 8 more pins to your microcontroller is easy using this 8 port expander chip. Just communicate to the chip via 2 pins using the standard SPI protocol and you'll have an additional 8 pins that can be inputs, outputs, inputs with a pullup or open drain! Great when your project requires more I/O pins than you have on your Arduino or Raspberry Pi microcontroller.


  • Quickly turn 2 pins into 8!
  • Operating Voltage: 1.8V - 5.5V
  • Communication Protocol: SPI
  • Raspberry Pi and Arduino Compatible
  • Manufacturer Part Number: MCP23S08
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