MCP23017 schematic
Posted: Thu Jul 30, 2009 12:53 am
Hi,
I want to connect 2 of these I/O expansion boards to 16F887 and 18F4620. Both will be on the same slave PCB from the main pic and I will use RJ12 to connect the main PIC board to the expansion board. Th RJ12 cables will be about 6 inches long. I will have 5V coming from the main PIC to power these boards.
Can someone supply me with a schematic will proper resistors/capacitors for this circuit.
I am ordering some prototype boards and I wanted to put a quick schematic together to include it in my order.
Thank you,
Ron
I want to connect 2 of these I/O expansion boards to 16F887 and 18F4620. Both will be on the same slave PCB from the main pic and I will use RJ12 to connect the main PIC board to the expansion board. Th RJ12 cables will be about 6 inches long. I will have 5V coming from the main PIC to power these boards.
Can someone supply me with a schematic will proper resistors/capacitors for this circuit.
I am ordering some prototype boards and I wanted to put a quick schematic together to include it in my order.
Thank you,
Ron