MCP23009/MCP23S09 8-Bit I/O Expander with Open-Dr.
Microchip Technology
MCP23S09 - 8-Bit I/O Expander
MCP23009/MCP23S09 8-Bit I/O Expander with Open-Drain Outputs Features: • 8-Bit Remote Bidirectional I/O Port: - I/O Pins Default to Input • Open-Dra.