MCP23S17-E/SS IC-23S17 I/O EXPANDER SPI 16B 28SSOP MICROCHIP MCP23S17-E/SS is a versatile and high-performance I/O expander that supports a supply voltage range of 1.8V to 5.5V with Push-Pull output type. Designed for efficient operation within a frequency of 10MHz and temperature range of -40°C~+125°C. Compact package type: N/A, mounting style: SMT.Manufactured with compliance to ROHS standards for reliable performance. Packaged as TUBE for convenience.