The 74AHC1G07 and 74AHCT1G07 are non-inverting buffers with open-drain output. The output of these high-speed devices can be connected to other open-drain outputs offering more flexibility. The ...
The MCP23S18 is device that provides 16-bit, general purpose parallel I/O expansion for SPI applications. It contains multiple 8-bit configuration registers for input, output and polarity selection.