MCP23017 SPI MCP23S17 10MHz Bidirectional 16-Bit I/O Expander Arduino

New Serial Interface Module IIC I2C MCP23017 SPI MCP23S17 Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Interface Module 16-Bit Remote Bidirectional I/O Port: - I/O pins default to input • High-Speed I2C Interface (MCP23017): - 100kHz - 400kHz - 1.7MHz • High-Speed SPI Interface (MCP23S17): - 10 MHz (maximum) • Three Hardware Address Pins to Allow Up to Eight Devices On the Bus • Configurable Interrupt Output Pins: - Configurable as active-high, active-low or open-drain • INTA and INTB Can Be Configured to Operate Independently or Together • Configurable Interrupt Source: - Interrupt-on-change from configured register defaults or pin changes • Polarity Inversion Register to Configure the Polarity of the Input Port Data • External Reset Input • Low Standby Current: 1 μA (max.) • Operating Voltage: - 1.8V to 5.5V @ -40°C to +85°C - 2.7V to 5.5V @ -40°C to +85°C - 4.5V to 5.5V @ -40°C to +125°C