MCP23017, 16-Bit, I/O Expander with Serial Interface - SSOP-28

The MCP23017 is a 16-bit I/O expander that uses the I2C interface for easy integration with microcontrollers, expanding the number of available input/output pins in embedded applications. This device features 16 GPIO pins configurable as either input or output, making it ideal for applications needing additional I/O capacity without the need for an extensive hardware footprint.

Each port can be individually programmed for pull-up resistors, inversion, and interrupt generation, providing enhanced flexibility for custom applications. Operating over a voltage range of 1.8V to 5.5V, it is suitable for both low-power and standard microcontroller systems.

Key Features :

• 16-Bit Bidirectional I/O Port - Configurable as either input or output, providing versatile control for embedded systems.
• I2C Interface - Operates with I2C frequencies up to 1.7 MHz, facilitating seamless communication with microcontrollers.
• Configurable Interrupts - Supports interrupt-on-change for each pin, customizable for both active-high and active-low.
• Addressability - Allows up to eight devices on the same I2C bus through hardware address pins.
• Low Standby Current - Consumes minimal power when not in use, making it suitable for battery-powered devices.
• Package Type - Available in a 28-pin SMD package for compact integration.