ITEM NAME:2x MCP23017 DIP SOP Bidirectional 16-Bit I/O Expander I2C IIC Serial I WTG.McP23017-sop: MCP23017 SOP-28 McP23017-e /SO 16-bit I/O expander, I2C interface IC. MCP23017 - I2C †¢ high-speed I2C interface (MCP23017) IIC serial interface. McP23017-dip: McP23017-28 dip-e /SP 16-bit I/O extender, I2C interface IC.