mcp23017 datasheet

The MCP23017 is a 16-bit I/O expander with serial interface that provides easy and efficient way to add more GPIO pins to a microcontroller. This device features 16 individually programmable GPIO pins which can be configured as inputs or outputs. It communicates with the microcontroller through a simple I2C interface, reducing the amount of GPIO pins required on the microcontroller. The MCP23017 also has the ability to provide interrupt outputs to the microcontroller based on configurable conditions. With a wide operating voltage range and low power consumption, the MCP23017 is suitable for various applications such as interfacing with keypads, switches, LEDs, and other digital sensors. It comes in various package options including PDIP, SOIC, TSSOP, and QFN, making it suitable for different PCB designs. The MCP23017 is a convenient and versatile solution for expanding the I/O capabilities of microcontrollers in a wide range of applications.