The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface:

MCP23017-E/SP – I/O Expander 16 I2C 1.7 MHz 28-SPDIP from Microchip Technology. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

The MCP23017 uses two i2c pins (these can be shared with other i2c devices), and in exchange gives you 16 general purpose pins. You can set each of 16 pins to be input, output, or input …

Nov 19, 2022 · Here you will learn how to use the GPIO Expander MCP23017 with an Arduino to control up to 128 GPIOs pins via the I2C interface.

Mar 18, 2024 · Learn about the MCP23017 I/O expander, its features, pinout configuration, Arduino interfacing, troubleshooting tips, and common applications. Gain insights into …

Learn how to use the MCP23017 with detailed documentation, including pinouts, usage guides, and example projects. Perfect for students, hobbyists, and developers integrating the …

This board features the MCP23017, a 16-bit resolution I/O expander with an I2C serial interface from Microchip. Any of the sixteen I/Os of the MCP23017 can be configured as an input or …

MCP23017-E/SO Microchip Technology Interface - I/O Expanders 16bit Input/Output Exp I2C interface datasheet, inventory, & pricing.

The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface:

Apr 15, 2025 · MCP23017 The MCP23017, the square chip located in the left-center on the front of the board, provides general purpose parallel I/O expansion over I2C.