MCP23S08T-E/SOVAO MCP23S08T-E/SS MCP23S09-E/MG MCP23S09-E/P MCP23S09-E/P 单片机MCU MCP23S09-E/SO MCP23S09T-E/MG MCP23S09T-E/SO MCP23S17 MCP23S17-E/ML