BUY MCP23017-E/SP https://www.utsource.net/itm/p/6340971.html
16-Bit I/O Expander with Serial Interface
The MCP23017-E/SP is a 16-bit I/O expander with an I2C interface from Microchip. It provides general-purpose input/output (GPIO) expansion for I2C-bus applications. The device features two 8-bit ports, A and B, which can be used to connect up to 16 I/O pins. It also features an interrupt output pin, which can be used to alert the host processor of an input change. The MCP23017-E/SP is available in a 28-pin DIP package and operates over a temperature range of -40°C to +125°C. It is designed to operate with a supply voltage of 2.7V to 5.5V. Features: - 16-bit I/O expander with I2C interface - Two 8-bit ports, A and B - Interrupt output pin - 28-pin DIP package - Operating temperature range of -40°C to +125°C - Supply voltage range of 2.7V to 5.5V Applications: - Remote I/O expansion - Home automation - Industrial control - Automotive applications - Robotics (For reference only)