MCP23S17T-E/SS IC-23S17 I/O EXPANDER SPI 10MHz 28-SSOP MCP23S17T-E/SS is a versatile and high-performance I/O expander that supports a supply voltage range of - with - output type. Designed for efficient operation within a frequency of - and temperature range of -. Compact package type: N/A, mounting style: -.Manufactured with compliance to - standards for reliable performance. Packaged as - for convenience.