MCP23S08E/SS MCP23S08-E/SS MCP23S08-I/SS MCP23S08T-E/ML MCP23S08T-E/SO MCP23S08T-E/SOVAO MCP23S08T-E/SS MCP23S09-E/MG MCP23S09-E/P MCP23S09-E/P 单片机MCU