MCP23017/MCP23S17 16-Bit I/O Expander with Serial Interface Features • 16-Bit Remote Bidirectional I/O Port: - I/O pins default to input • High-Speed I2C Interface (MCP23017): - 100 kHz - 400 kHz - 1.
7 MHz • 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 Package Types MCP23017 GPB0 GPB1 GPB2 GPB3 GPB4 GPB5 GPB6 GPB7 VDD VSS NC SCK SDA NC •1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA...

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